time-to-botec

README.md (135682B)

---

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 # mskunary
 
 > Apply a unary callback to elements in a strided input array according to elements in a strided mask array and assign results to elements in a strided output array.
 
 <section class="intro">
 
 </section>
 
 <!-- /.intro -->
 
 <section class="usage">
 
 ## Usage
 
 ```javascript
 var mskunary = require( '@stdlib/strided/base/mskunary' );
 ```
 
 #### mskunary( arrays, shape, strides, fcn )
 
 Applies a unary callback to elements in a strided input array according to elements in a strided mask array and assigns results to elements in a strided output array.
 
 ```javascript
 var Float64Array = require( '@stdlib/array/float64' );
 var Uint8Array = require( '@stdlib/array/uint8' );
 var abs = require( '@stdlib/math/base/special/abs' );
 
 var x = new Float64Array( [ -2.0, 1.0, 3.0, -5.0, 4.0, 0.0, -1.0, -3.0 ] );
 var mask = new Uint8Array( [ 0, 0, 0, 1, 0, 0, 0, 1 ] );
 
 // Compute the absolute values in-place:
 mskunary( [ x, mask, x ], [ x.length ], [ 1, 1, 1 ], abs );
 // x => <Float64Array>[ 2.0, 1.0, 3.0, -5.0, 4.0, 0.0, 1.0, -3.0 ]
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: array-like object containing one strided input array, a strided mask array, and one strided output array.
 -   **shape**: array-like object containing a single element, the number of indexed elements.
 -   **strides**: array-like object containing the stride lengths for the strided arrays.
 -   **fcn**: unary function to apply.
 
 The `shape` and `strides` parameters determine which elements in the strided arrays are accessed at runtime. For example, to index every other value in the strided input array and to index the first `N` elements of the strided output array in reverse order,
 
 ```javascript
 var Float64Array = require( '@stdlib/array/float64' );
 var Uint8Array = require( '@stdlib/array/uint8' );
 var floor = require( '@stdlib/math/base/special/floor' );
 var abs = require( '@stdlib/math/base/special/abs' );
 
 var x = new Float64Array( [ -1.0, -2.0, -3.0, -4.0, -5.0, -6.0 ] );
 var mask = new Uint8Array( [ 0, 1, 0, 0, 0, 0 ] );
 var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
 
 var N = floor( x.length / 2 );
 
 mskunary( [ x, mask, y ], [ N ], [ 2, 1, -1 ], abs );
 // y => <Float64Array>[ 5.0, 0.0, 1.0, 0.0, 0.0, 0.0 ]
 ```
 
 Note that indexing is relative to the first index. To introduce an offset, use [`typed array`][mdn-typed-array] views.
 
 ```javascript
 var Float64Array = require( '@stdlib/array/float64' );
 var Uint8Array = require( '@stdlib/array/uint8' );
 var floor = require( '@stdlib/math/base/special/floor' );
 var abs = require( '@stdlib/math/base/special/abs' );
 
 // Initial arrays...
 var x0 = new Float64Array( [ -1.0, -2.0, -3.0, -4.0, -5.0, -6.0 ] );
 var m0 = new Uint8Array( [ 0, 0, 0, 0, 0, 1 ] );
 var y0 = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
 
 // Create offset views...
 var x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
 var m1 = new Uint8Array( m0.buffer, m0.BYTES_PER_ELEMENT*3 ); // start at 4th element
 var y1 = new Float64Array( y0.buffer, y0.BYTES_PER_ELEMENT*3 ); // start at 4th element
 
 var N = floor( x0.length / 2 );
 
 mskunary( [ x1, m1, y1 ], [ N ], [ -2, 1, 1 ], abs );
 // y0 => <Float64Array>[ 0.0, 0.0, 0.0, 6.0, 4.0, 0.0 ]
 ```
 
 #### mskunary.ndarray( arrays, shape, strides, offsets, fcn )
 
 Applies a unary callback to elements in a strided input array according to elements in a strided mask array and assigns results to elements in a strided output array using alternative indexing semantics.
 
 ```javascript
 var Float64Array = require( '@stdlib/array/float64' );
 var Uint8Array = require( '@stdlib/array/uint8' );
 var abs = require( '@stdlib/math/base/special/abs' );
 
 var x = new Float64Array( [ -1.0, -2.0, -3.0, -4.0, -5.0 ] );
 var mask = new Uint8Array( [ 0, 0, 1, 0, 0 ] );
 var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] );
 
 mskunary.ndarray( [ x, mask, y ], [ x.length ], [ 1, 1, 1 ], [ 0, 0, 0 ], abs );
 // y => <Float64Array>[ 1.0, 2.0, 0.0, 4.0, 5.0 ]
 ```
 
 The function accepts the following additional arguments:
 
 -   **offsets**: array-like object containing the starting indices (i.e., index offsets) for the strided arrays.
 
 While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying `buffer`, the `offsets` parameter supports indexing semantics based on starting indices. For example, to index every other value in the strided input array starting from the second value and to index the last `N` elements in the strided output array,
 
 <!-- eslint-disable max-len -->
 
 ```javascript
 var Float64Array = require( '@stdlib/array/float64' );
 var Uint8Array = require( '@stdlib/array/uint8' );
 var floor = require( '@stdlib/math/base/special/floor' );
 var abs = require( '@stdlib/math/base/special/abs' );
 
 var x = new Float64Array( [ -1.0, -2.0, -3.0, -4.0, -5.0, -6.0 ] );
 var mask = new Uint8Array( [ 0, 1, 0, 0, 0, 0 ] );
 var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
 
 var N = floor( x.length / 2 );
 
 mskunary.ndarray( [ x, mask, y ], [ N ], [ 2, 1, -1 ], [ 1, 0, y.length-1 ], abs );
 // y => <Float64Array>[ 0.0, 0.0, 0.0, 6.0, 0.0, 2.0 ]
 ```
 
 </section>
 
 <!-- /.usage -->
 
 <section class="notes">
 
 </section>
 
 <!-- /.notes -->
 
 <section class="examples">
 
 ## Examples
 
 <!-- eslint no-undef: "error" -->
 
 ```javascript
 var discreteUniform = require( '@stdlib/random/base/discrete-uniform' ).factory;
 var bernoulli = require( '@stdlib/random/base/bernoulli' ).factory;
 var filledarray = require( '@stdlib/array/filled' );
 var gfillBy = require( '@stdlib/blas/ext/base/gfill-by' );
 var mskunary = require( '@stdlib/strided/base/mskunary' );
 
 function add10( x ) {
     return x + 10;
 }
 
 var N = 10;
 
 var x = filledarray( 0.0, N, 'generic' );
 gfillBy( x.length, x, 1, discreteUniform( -100, 100 ) );
 console.log( x );
 
 var m = filledarray( 0, N, 'generic' );
 gfillBy( m.length, m, 1, bernoulli( 0.5 ) );
 console.log( m );
 
 var y = filledarray( 0.0, N, 'generic' );
 console.log( y );
 
 var shape = [ N ];
 var strides = [ 1, 1, -1 ];
 var offsets = [ 0, 0, N-1 ];
 
 mskunary.ndarray( [ x, m, y ], shape, strides, offsets, add10 );
 console.log( y );
 ```
 
 </section>
 
 <!-- /.examples -->
 
 <!-- C interface documentation. -->
 
 * * *
 
 <section class="c">
 
 ## C APIs
 
 <!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
 
 <section class="intro">
 
 Character codes for data types:
 
 -   **d**: `float64` (double-precision floating-point number).
 -   **f**: `float32` (single-precision floating-point number).
 -   **s**: `int8` (signed 8-bit integer).
 -   **b**: `uint8` (unsigned 8-bit integer).
 -   **k**: `int16` (signed 16-bit integer).
 -   **t**: `uint16` (unsigned 16-bit integer).
 -   **i**: `int32` (signed 32-bit integer).
 -   **u**: `uint32` (unsigned 32-bit integer).
 -   **l**: `int64` (signed 64-bit integer).
 -   **v**: `uint64` (unsigned 64-bit integer).
 
 Function name suffix naming convention:
 
 ```text
 stdlib_strided_mask_<input_data_type>_<output_data_type>[_as_<callback_arg_data_type>_<callback_return_data_type>]
 ```
 
 For example,
 
 ```c
 void stdlib_strided_mask_d_d(...) {...}
 ```
 
 is a function which accepts one double-precision floating-point strided input array and one double-precision floating-point strided output array. In other words, the suffix encodes the function type signature.
 
 To support callbacks whose input arguments and/or return values are of a different data type than the strided input and/or output array data types, the naming convention supports appending an `as` suffix. For example,
 
 ```c
 void stdlib_strided_mask_f_f_as_d_d(...) {...}
 ```
 
 is a function which accepts one single-precision floating-point strided input array and one single-precision floating-point strided output array. However, the callback accepts and returns double-precision floating-point numbers. Accordingly, the input and output values need to be cast using the following conversion sequence
 
 ```c
 // Convert each input array element to double-precision:
 double dxi = (double)fx[ i ];
 
 // Evaluate the callback:
 double dyi = f( dxi );
 
 // Convert the callback return value to single-precision:
 fy[ i ] = (float)dyi;
 ```
 
 </section>
 
 <!-- /.intro -->
 
 <!-- C usage documentation. -->
 
 <section class="usage">
 
 ### Usage
 
 ```c
 #include "stdlib/strided/base/mskunary.h"
 ```
 
 #### UnaryFcnFloat32
 
 Function type for a function accepting and returning single-precision floating-point numbers.
 
 ```c
 typedef float UnaryFcnFloat32( const float x );
 ```
 
 A `UnaryFcnFloat32` function should accept the following arguments:
 
 -   **x**: `[in] float` single-precision floating-point number.
 
 The function should return a single-precision floating-point number.
 
 #### UnaryFcnFloat32Int64
 
 Function type for a function which accepts a single-precision floating-point number and returns a signed 64-bit integer.
 
 ```c
 typedef int64_t UnaryFcnFloat32Int64( const float x );
 ```
 
 A `UnaryFcnFloat32Int64` function should accept the following arguments:
 
 -   **x**: `[in] float` single-precision floating-point number.
 
 The function should return a signed 64-bit integer.
 
 #### UnaryFcnFloat32Int32
 
 Function type for a function which accepts a single-precision floating-point number and returns a signed 32-bit integer.
 
 ```c
 typedef int32_t UnaryFcnFloat32Int32( const float x );
 ```
 
 A `UnaryFcnFloat32Int32` function should accept the following arguments:
 
 -   **x**: `[in] float` single-precision floating-point number.
 
 The function should return a signed 32-bit integer.
 
 #### UnaryFcnFloat64
 
 Function type for a function which accepts and returns double-precision floating-point numbers.
 
 ```c
 typedef double UnaryFcnFloat64( const double x );
 ```
 
 A `UnaryFcnFloat64` function should accept the following arguments:
 
 -   **x**: `[in] double` double-precision floating-point number.
 
 The function should return a double-precision floating-point number.
 
 #### UnaryFcnFloat64Int64
 
 Function type for a function which accepts a double-precision floating-point number and returns a signed 64-bit integer.
 
 ```c
 typedef int64_t UnaryFcnFloat64Int64( const double x );
 ```
 
 A `UnaryFcnFloat64Int64` function should accept the following arguments:
 
 -   **x**: `[in] double` double-precision floating-point number.
 
 The function should return a signed 64-bit integer.
 
 #### UnaryFcnFloat64Int32
 
 Function type for a function which accepts a double-precision floating-point number and returns a signed 32-bit integer.
 
 ```c
 typedef int32_t UnaryFcnFloat64Int32( const double x );
 ```
 
 A `UnaryFcnFloat64Int32` function should accept the following arguments:
 
 -   **x**: `[in] double` double-precision floating-point number.
 
 The function should return a signed 32-bit integer.
 
 #### UnaryFcnInt64
 
 Function type for a function which accepts and returns signed 64-bit integers.
 
 ```c
 typedef int64_t UnaryFcnInt64( const int64_t x );
 ```
 
 A `UnaryFcnInt64` function should accept the following arguments:
 
 -   **x**: `[in] int64_t` signed 64-bit integer.
 
 The function should return a signed 64-bit integer.
 
 #### UnaryFcnUint64
 
 Function type for a function which accepts and returns unsigned 64-bit integers.
 
 ```c
 typedef uint64_t UnaryFcnUint64( const uint64_t x );
 ```
 
 A `UnaryFcnUint64` function should accept the following arguments:
 
 -   **x**: `[in] uint64_t` unsigned 64-bit integer.
 
 The function should return an unsigned 64-bit integer.
 
 #### UnaryFcnInt32
 
 Function type for a function which accepts and returns signed 32-bit integers.
 
 ```c
 typedef int32_t UnaryFcnInt32( const int32_t x );
 ```
 
 A `UnaryFcnInt32` function should accept the following arguments:
 
 -   **x**: `[in] int32_t` signed 32-bit integer.
 
 The function should return a signed 32-bit integer.
 
 #### UnaryFcnUint32
 
 Function type for a function which accepts and returns unsigned 32-bit integers.
 
 ```c
 typedef uint32_t UnaryFcnUint32( const uint32_t x );
 ```
 
 A `UnaryFcnUint32` function should accept the following arguments:
 
 -   **x**: `[in] uint32_t` unsigned 32-bit integer.
 
 The function should return an unsigned 32-bit integer.
 
 #### UnaryFcnInt16
 
 Function type for a function which accepts and returns signed 16-bit integers.
 
 ```c
 typedef int16_t UnaryFcnInt16( const int16_t x );
 ```
 
 A `UnaryFcnInt16` function should accept the following arguments:
 
 -   **x**: `[in] int16_t` signed 16-bit integer.
 
 The function should return a signed 16-bit integer.
 
 #### UnaryFcnUint16
 
 Function type for a function which accepts and returns unsigned 16-bit integers.
 
 ```c
 typedef uint16_t UnaryFcnUint16( const uint16_t x );
 ```
 
 A `UnaryFcnUint16` function should accept the following arguments:
 
 -   **x**: `[in] uint16_t` unsigned 16-bit integer.
 
 The function should return an unsigned 16-bit integer.
 
 #### UnaryFcnInt8
 
 Function type for a function which accepts and returns signed 8-bit integers.
 
 ```c
 typedef int8_t UnaryFcnInt8( const int8_t x );
 ```
 
 A `UnaryFcnInt8` function should accept the following arguments:
 
 -   **x**: `[in] int8_t` signed 8-bit integer.
 
 The function should return a signed 8-bit integer.
 
 #### UnaryFcnUint8
 
 Function type for a function which accepts and returns unsigned 8-bit integers.
 
 ```c
 typedef uint8_t UnaryFcnUint8( const uint8_t x );
 ```
 
 A `UnaryFcnUint8` function should accept the following arguments:
 
 -   **x**: `[in] uint8_t` unsigned 8-bit integer.
 
 The function should return an unsigned 8-bit integer.
 
 <!-- NOTE: keep the following in alphabetical order -->
 
 * * *
 
 #### stdlib_strided_mask_b_b( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning unsigned 8-bit integers to an unsigned 8-bit integer strided input array and assigns results to elements in an unsigned 8-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 1 }; // 1 byte per uint8
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint8_t scale( const uint8_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_b_b( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint8` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_b_b( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_b_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning unsigned 8-bit integers to an unsigned 8-bit integer strided input array, casts the callback's unsigned 8-bit integer return value to a double-precision floating-point number, and assigns results to elements in a double-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 8 }; // 1 byte per uint8, 8 bytes per double
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint8_t scale( const uint8_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_b_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint8` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_b_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_b_d_as_d_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning double-precision floating-point numbers to an unsigned 8-bit integer strided input array and assigns results to elements in a double-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 8 }; // 1 byte per uint8, 8 bytes per double
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 double scale( const double x ) {
     return x + 10.0;
 }
 
 // Apply the callback:
 stdlib_strided_mask_b_d_as_d_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_b_d_as_d_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_b_f( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning unsigned 8-bit integers to an unsigned 8-bit integer strided input array, casts the callback's unsigned 8-bit integer return value to a single-precision floating-point number, and assigns results to elements in a single-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 4 }; // 1 byte per uint8, 4 bytes per float
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint8_t scale( const uint8_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_b_f( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint8` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_b_f( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_b_f_as_d_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning double-precision floating-point numbers to an unsigned 8-bit integer strided input array, casts the callback's double-precision floating-point return value to a single-precision floating-point number, and assigns results to elements in a single-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 4 }; // 1 byte per uint8, 4 bytes per float
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 double scale( const double x ) {
     return x + 10.0;
 }
 
 // Apply the callback:
 stdlib_strided_mask_b_f_as_d_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_b_f_as_d_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_b_f_as_f_f( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning single-precision floating-point numbers to an unsigned 8-bit integer strided input array, casts the callback's single-precision floating-point return value to a single-precision floating-point number, and assigns results to elements in a single-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 4 }; // 1 byte per uint8, 4 bytes per float
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 float scale( const float x ) {
     return x + 10.0f;
 }
 
 // Apply the callback:
 stdlib_strided_mask_b_f_as_f_f( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_b_f_as_f_f( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_b_i( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 32-bit integers to an unsigned 8-bit integer strided input array, casts the callback's unsigned 8-bit integer return value to a signed 32-bit integer, and assigns results to elements in a signed 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 4 }; // 1 byte per uint8, 4 bytes per int32
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint8_t scale( const uint8_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_b_i( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint8` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_b_i( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_b_i_as_i_i( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 32-bit integers to an unsigned 8-bit integer strided input array and assigns results to elements in a signed 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 4 }; // 1 byte per uint8, 4 bytes per int32
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int32_t scale( const int32_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_b_i_as_i_i( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_b_i_as_i_i( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_b_k( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning unsigned 8-bit integers to an unsigned 8-bit integer strided input array, casts the callback's unsigned 8-bit integer return value to a signed 16-bit integer, and assigns results to elements in a signed 16-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 2 }; // 1 byte per uint8, 2 bytes per int16
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint8_t scale( const uint8_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_b_k( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint8` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_b_k( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_b_k_as_k_k( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 16-bit integers to an unsigned 8-bit integer strided input array and assigns results to elements in a signed 16-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 2 }; // 1 byte per uint8, 2 bytes per int16
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int16_t scale( const int16_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_b_k_as_k_k( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt16` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_b_k_as_k_k( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_b_t( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning unsigned 8-bit integers to an unsigned 8-bit integer strided input array, casts the callback's unsigned 8-bit integer return value to an unsigned 16-bit integer, and assigns results to elements in an unsigned 16-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 2 }; // 1 byte per uint8, 2 bytes per uint16
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint8_t scale( const uint8_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_b_t( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint8` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_b_t( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_b_t_as_t_t( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning unsigned 16-bit integers to an unsigned 8-bit integer strided input array and assigns results to elements in an unsigned 16-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 2 }; // 1 byte per uint8, 2 bytes per uint16
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint16_t scale( const uint16_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_b_t_as_t_t( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint16` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_b_t_as_t_t( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_b_u( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning unsigned 8-bit integers to an unsigned 8-bit integer strided input array, casts the callback's unsigned 8-bit integer return value to an unsigned 32-bit integer, and assigns results to elements in an unsigned 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 4 }; // 1 byte per uint8, 4 bytes per uint32
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint8_t scale( const uint8_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_b_u( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint8` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_b_u( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_b_u_as_u_u( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning unsigned 32-bit integers to an unsigned 8-bit integer strided input array and assigns results to elements in an unsigned 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 4 }; // 1 byte per uint8, 4 bytes per uint32
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint32_t scale( const uint32_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_b_u_as_u_u( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_b_u_as_u_u( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_d_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning double-precision floating-point numbers to a double-precision floating-point strided input array and assigns results to elements in a double-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 8, 1, 8 }; // 8 bytes per double, 1 byte per uint8
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 double scale( const double x ) {
     return x + 10.0;
 }
 
 // Apply the callback:
 stdlib_strided_mask_d_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_d_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_d_i( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting a double-precision floating-point number and returning a signed 32-bit integer to a double-precision floating-point strided input array and assigns results to elements in a signed 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 #include <math.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 8, 1, 4 }; // 8 bytes per double, 1 byte per uint8, 4 bytes per int32
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Apply the callback:
 stdlib_strided_mask_d_i( arrays, shape, strides, (void *)lrint );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat64Int32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_d_i( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_d_l( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting a double-precision floating-point number and returning a signed 64-bit integer to a double-precision floating-point strided input array and assigns results to elements in a signed 64-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 #include <math.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 8, 1, 8 }; // 8 bytes per double, 1 byte per uint8, 8 bytes per int64
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Apply the callback:
 stdlib_strided_mask_d_l( arrays, shape, strides, (void *)llrint );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat64Int64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_d_l( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_f_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning single-precision floating-point numbers to a single-precision floating-point strided input array, casts the callback's single-precision floating-point return value to a double-precision floating-point number, and assigns results to elements in a double-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 4, 1, 8 }; // 4 bytes per float, 1 byte per uint8, 8 bytes per double
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 float scale( const float x ) {
     return x + 10.0f;
 }
 
 // Apply the callback:
 stdlib_strided_mask_f_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_f_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_f_d_as_d_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning double-precision floating-point numbers to a single-precision floating-point strided input array and assigns results to elements in a double-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 4, 1, 8 }; // 4 bytes per float, 1 byte per uint8, 8 bytes per double
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 double scale( const double x ) {
     return x + 10.0;
 }
 
 // Apply the callback:
 stdlib_strided_mask_f_d_as_d_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_f_d_as_d_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_f_f( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning single-precision floating-point numbers to a single-precision floating-point strided input array and assigns results to elements in a single-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 4, 1, 4 }; // 4 bytes per float, 1 byte per uint8
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 float scale( const float x ) {
     return x + 10.0f;
 }
 
 // Apply the callback:
 stdlib_strided_mask_f_f( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_f_f( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_f_f_as_d_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning double-precision floating-point numbers, casts the callback's double-precision floating-point return value to a single-precision floating-point number, and assigns results to elements in a single-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 4, 1, 4 }; // 4 bytes per float, 1 byte per uint8
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 double scale( const double x ) {
     return x + 10.0;
 }
 
 // Apply the callback:
 stdlib_strided_mask_f_f_as_d_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_f_f_as_d_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_f_i( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting a single-precision floating-point number and returning a signed 32-bit integer to a single-precision floating-point strided input array and assigns results to elements in a signed 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 #include <math.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 4, 1, 4 }; // 4 bytes per float, 1 byte per uint8, 4 bytes per int32
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Apply the callback:
 stdlib_strided_mask_f_i( arrays, shape, strides, (void *)lrintf );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat32Int32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_f_i( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_f_l( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting a single-precision floating-point number and returning a signed 64-bit integer to a single-precision floating-point strided input array and assigns results to elements in a signed 64-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 #include <math.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 4, 1, 8 }; // 4 bytes per float, 1 byte per uint8, 8 bytes per int64
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Apply the callback:
 stdlib_strided_mask_f_l( arrays, shape, strides, (void *)lrintf );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat32Int64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_f_l( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_i_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 32-bit integers to a signed 32-bit integer strided input array, casts the callback's signed 32-bit integer return value to a double-precision floating-point number, and assigns results to elements in a double-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 4, 1, 8 }; // 4 bytes per int32, 1 byte per uint8, 8 bytes per double
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int32_t scale( const int32_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_i_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_i_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_i_d_as_d_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning double-precision floating-point numbers to a signed 32-bit integer strided input array and assigns results to elements in a double-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 4, 1, 8 }; // 4 bytes per int32, 1 byte per uint8, 8 bytes per double
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 double scale( const double x ) {
     return x + 10.0;
 }
 
 // Apply the callback:
 stdlib_strided_mask_i_d_as_d_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_i_d_as_d_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_i_i( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 32-bit integers to a signed 32-bit integer strided input array and assigns results to elements in a signed 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 4, 1, 4 }; // 4 bytes per int32, 1 byte per uint8
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int32_t scale( const int32_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_i_i( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_i_i( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_i_u( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 32-bit integers to a signed 32-bit integer strided input array, casts the callback's signed 32-bit integer return value to an unsigned 32-bit integer, and assigns results to elements in an unsigned 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 4, 1, 4 }; // 4 bytes per int32, 1 byte per uint8, 4 bytes per uint32
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int32_t abs( const int32_t x ) {
     if ( x < 0 ) {
         return -x;
     }
     return x;
 }
 
 // Apply the callback:
 stdlib_strided_mask_i_u( arrays, shape, strides, (void *)abs );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_i_u( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_k_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 16-bit integers to a signed 16-bit integer strided input array, casts the callback's signed 16-bit integer return value to a double-precision floating-point number, and assigns results to elements in a double-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 8 }; // 2 bytes per int16, 1 byte per uint8, 8 bytes per double
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int16_t scale( const int16_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_k_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt16` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_k_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_k_d_as_d_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning double-precision floating-point numbers to a signed 16-bit integer strided input array and assigns results to elements in a double-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 8 }; // 2 bytes per int16, 1 byte per uint8, 8 bytes per double
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 double scale( const double x ) {
     return x + 10.0;
 }
 
 // Apply the callback:
 stdlib_strided_mask_k_d_as_d_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_k_d_as_d_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_k_f( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 16-bit integers to a signed 16-bit integer strided input array, casts the callback's signed 16-bit integer return value to a single-precision floating-point number, and assigns results to elements in a single-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 4 }; // 2 bytes per int16, 1 byte per uint8, 4 bytes per float
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int16_t scale( const int16_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_k_f( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt16` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_k_f( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_k_f_as_d_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning double-precision floating-point numbers to a signed 16-bit integer strided input array, casts the callback's double-precision floating-point return value to a single-precision floating-point number, and assigns results to elements in a single-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 4 }; // 2 bytes per int16, 1 byte per uint8, 4 bytes per float
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 double scale( const double x ) {
     return x + 10.0;
 }
 
 // Apply the callback:
 stdlib_strided_mask_k_f_as_d_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_k_f_as_d_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_k_f_as_f_f( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning single-precision floating-point numbers to a signed 16-bit integer strided input array and assigns results to elements in a single-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 4 }; // 2 bytes per int16, 1 byte per uint8, 4 bytes per float
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 float scale( const float x ) {
     return x + 10.0f;
 }
 
 // Apply the callback:
 stdlib_strided_mask_k_f_as_f_f( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_k_f_as_f_f( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_k_i( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 16-bit integers to a signed 16-bit integer strided input array, casts the callback's signed 16-bit integer return value to a signed 32-bit integer, and assigns results to elements in a signed 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 4 }; // 2 bytes per int16, 1 byte per uint8, 4 bytes per int32
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int16_t scale( const int16_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_k_i( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt16` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_k_i( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_k_i_as_i_i( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 32-bit integers to a signed 16-bit integer strided input array and assigns results to elements in a signed 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 4 }; // 2 bytes per int16, 1 byte per uint8, 4 bytes per int32
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int32_t scale( const int32_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_k_i_as_i_i( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_k_i_as_i_i( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_k_k( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 16-bit integers to a signed 16-bit integer strided input array and assigns results to elements in a signed 16-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 2 }; // 2 bytes per int16, 1 byte per uint8
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int16_t scale( const int16_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_k_k( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt16` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_k_k( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_k_t( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returned signed 16-bit integers to a signed 16-bit integer strided input array, casts the callback's signed 16-bit integer return value to an unsigned 16-bit integer, and assigns results to elements in an unsigned 16-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 2 }; // 2 bytes per int16, 1 byte per uint8, 2 bytes per uint16
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int16_t abs( const int16_t x ) {
     if ( x < 0 ) {
         return -x;
     }
     return x;
 }
 
 // Apply the callback:
 stdlib_strided_mask_k_t( arrays, shape, strides, (void *)abs );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt16` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_k_t( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_k_u( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 16-bit integers to a signed 16-bit integer strided input array, casts the callback's signed 16-bit integer return value to an unsigned 32-bit integer, and assigns results to elements in an unsigned 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 4 }; // 2 bytes per int16, 1 byte per uint8, 4 bytes per uint32
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int16_t abs( const int16_t x ) {
     if ( x < 0 ) {
         return -x;
     }
     return x;
 }
 
 // Apply the callback:
 stdlib_strided_mask_k_u( arrays, shape, strides, (void *)abs );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt16` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_k_u( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_l_l( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 64-bit integers to a signed 64-bit integer strided input array and assigns results to elements in a signed 64-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 uint8_t m[] = { 0, 1, 0 }; 0, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 8, 1, 8 }; // 8 bytes per int64, 1 byte per uint8
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int64_t scale( const int64_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_l_l( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_l_l( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_l_v( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 64-bit integers to a signed 64-bit integer strided input array, casts the callback's signed 64-bit integer return value to an unsigned 64-bit integer, and assigns results to elements in an unsigned 64-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 uint8_t m[] = { 0, 1, 0 }; 0, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 8, 1, 8 }; // 8 bytes per int64, 1 byte per uint8, 8 bytes per uint64
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int64_t abs( const int64_t x ) {
     if ( x < 0 ) {
         return -x;
     }
     return x;
 }
 
 // Apply the callback:
 stdlib_strided_mask_l_v( arrays, shape, strides, (void *)abs );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_l_v( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_s_b( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 8-bit integers to a signed 8-bit integer strided input array, casts the callback's signed 8-bit integer return value to an unsigned 8-bit integer, and assigns results to elements in an unsigned 8-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 1 }; // 1 byte per int8, 1 byte per uint8, 1 byte per uint8
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int8_t abs( const int8_t x ) {
     if ( x < 0 ) {
         return -x;
     }
     return x;
 }
 
 // Apply the callback:
 stdlib_strided_mask_s_b( arrays, shape, strides, (void *)abs );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt8` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_s_b( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_s_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 8-bit integers to a signed 8-bit integer strided input array, casts the callback's signed 8-bit integer return value to a double-precision floating-point number, and assigns results to elements in a double-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 8 }; // 1 byte per int8, 1 byte per uint8, 8 bytes per double
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int8_t scale( const int8_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_s_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt8` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_s_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_s_d_as_d_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning double-precision floating-point numbers to a signed 8-bit integer strided input array and assigns results to elements in a double-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 8 }; // 1 byte per int8, 1 byte per uint8, 8 bytes per double
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 double scale( const double x ) {
     return x + 10.0;
 }
 
 // Apply the callback:
 stdlib_strided_mask_s_d_as_d_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_s_d_as_d_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_s_f( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 8-bit integers to a signed 8-bit integer strided input array, casts the callback's signed 8-bit integer return value to a single-precision floating-point number, and assigns results to elements in a single-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 4 }; // 1 byte per int8, 1 byte per uint8, 4 bytes per float
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int8_t scale( const int8_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_s_f( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt8` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_s_f( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_s_f_as_d_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning double-precision floating-point numbers to a signed 8-bit integer strided input array, casts the callback's double-precision floating-point return value to a single-precision floating-point number, and assigns results to elements in a single-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 4 }; // 1 byte per int8, 1 byte per uint8, 4 bytes per float
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 double scale( const double x ) {
     return x + 10.0;
 }
 
 // Apply the callback:
 stdlib_strided_mask_s_f_as_d_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_s_f_as_d_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_s_f_as_f_f( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning single-precision floating-point numbers to a signed 8-bit integer strided input array and assigns results to elements in a single-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 4 }; // 1 byte per int8, 1 byte per uint8, 4 bytes per float
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 float scale( const float x ) {
     return x + 10.0f;
 }
 
 // Apply the callback:
 stdlib_strided_mask_s_f_as_f_f( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_s_f_as_f_f( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_s_i( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 8-bit integers to a signed 8-bit integer strided input array, casts the callback's signed 8-bit integer return value to a signed 32-bit integer, and assigns results to elements in a signed 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 4 }; // 1 byte per int8, 1 byte per uint8, 4 bytes per int32
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int8_t scale( const int8_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_s_i( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt8` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_s_i( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_s_i_as_i_i( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 32-bit integers to a signed 8-bit integer strided input array and assigns results to elements in a signed 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 4 }; // 1 byte per int8, 1 byte per uint8, 4 bytes per int32
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int32_t scale( const int32_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_s_i_as_i_i( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_s_i_as_i_i( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_s_k( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 8-bit integers to a signed 8-bit integer strided input array, casts the callback's signed 8-bit integer return value to a signed 16-bit integer, and assigns results to elements in a signed 16-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 2 }; // 1 byte per int8, 1 byte per uint8, 2 bytes per int16
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int8_t scale( const int8_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_s_k( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt8` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_s_k( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_s_k_as_k_k( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 16-bit integers to a signed 8-bit integer strided input array and assigns results to elements in a signed 16-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 2 }; // 1 byte per int8, 1 byte per uint8, 2 bytes per int16
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int16_t scale( const int16_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_s_k_as_k_k( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt16` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_s_k_as_k_k( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_s_s( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 8-bit integers to a signed 8-bit integer strided input array and assigns results to elements in a signed 8-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 1 }; // 1 byte per int8, 1 byte per uint8
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int8_t scale( const int8_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_s_s( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt8` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_s_s( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_s_t( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 8-bit integers to a signed 8-bit integer strided input array, casts the callback's signed 8-bit integer return value to an unsigned 16-bit integer, and assigns results to elements in an unsigned 16-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 2 }; // 1 byte per int8, 1 byte per uint8, 2 bytes per uint16
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int8_t abs( const int8_t x ) {
     if ( x < 0 ) {
         return -x;
     }
     return x;
 }
 
 // Apply the callback:
 stdlib_strided_mask_s_t( arrays, shape, strides, (void *)abs );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt8` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_s_t( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_s_u( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 8-bit integers to a signed 8-bit integer strided input array, casts the callback's signed 8-bit integer return value to an unsigned 32-bit integer, and assigns results to elements in an unsigned 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 1, 1, 4 }; // 1 byte per int8, 1 byte per uint8, 4 bytes per uint32
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int8_t abs( const int8_t x ) {
     if ( x < 0 ) {
         return -x;
     }
     return x;
 }
 
 // Apply the callback:
 stdlib_strided_mask_s_u( arrays, shape, strides, (void *)abs );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt8` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_s_u( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_t_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning unsigned 16-bit integers to an unsigned 16-bit integer strided input array, casts the callback's unsigned 16-bit integer return value to a double-precision floating-point number, and assigns results to elements in a double-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 8 }; // 2 bytes per uint16, 1 byte per uint8, 8 bytes per double
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint16_t scale( const uint16_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_t_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint16` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_t_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_t_d_as_d_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning double-precision floating-point numbers to an unsigned 16-bit integer strided input array and assigns results to elements in a double-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 8 }; // 2 bytes per uint16, 1 byte per uint8, 8 bytes per double
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 double scale( const double x ) {
     return x + 10.0;
 }
 
 // Apply the callback:
 stdlib_strided_mask_t_d_as_d_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_t_d_as_d_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_t_f( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning unsigned 16-bit integers to an unsigned 16-bit integer strided input array, casts the callback's unsigned 16-bit integer return value to a single-precision floating-point number, and assigns results to elements in a single-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 4 }; // 2 bytes per uint16, 1 byte per uint8, 4 bytes per float
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint16_t scale( const uint16_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_t_f( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint16` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_t_f( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_t_f_as_d_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning double-precision floating-point numbers to an unsigned 16-bit integer strided input array, casts the callback's double-precision floating-point return value to a single-precision floating-point number, and assigns results to elements in a single-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 4 }; // 2 bytes per uint16, 1 byte per uint8, 4 bytes per float
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 double scale( const double x ) {
     return x + 10.0;
 }
 
 // Apply the callback:
 stdlib_strided_mask_t_f_as_d_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_t_f_as_d_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_t_f_as_f_f( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning single-precision floating-point numbers to an unsigned 16-bit integer strided input array and assigns results to elements in a single-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 4 }; // 2 bytes per uint16, 1 byte per uint8, 4 bytes per float
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 float scale( const float x ) {
     return x + 10.0f;
 }
 
 // Apply the callback:
 stdlib_strided_mask_t_f_as_f_f( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_t_f_as_f_f( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_t_i( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning unsigned 16-bit integers to an unsigned 16-bit integer strided input array, casts the callback's unsigned 16-bit integer return value to a signed 32-bit integer, and assigns results to elements in a signed 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 4 }; // 2 bytes per uint16, 1 byte per uint8, 4 bytes per int32
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint16_t scale( const uint16_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_t_i( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint16` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_t_i( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_t_i_as_i_i( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning signed 32-bit integers to an unsigned 16-bit integer strided input array and assigns results to elements in a signed 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 4 }; // 2 bytes per uint16, 1 byte per uint8, 4 bytes per int32
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 int32_t scale( const int32_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_t_i_as_i_i( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnInt32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_t_i_as_i_i( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_t_t( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning unsigned 16-bit integers to an unsigned 16-bit integer strided input array and assigns results to elements in an unsigned 16-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 2 }; // 2 bytes per uint16, 1 byte per uint8
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint16_t scale( const uint16_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_t_t( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint16` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_t_t( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_t_u( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning unsigned 16-bit integers to each element in an unsigned 16-bit integer strided input array, casts the callback's unsigned 16-bit integer return value to an unsigned 32-bit integer, and assigns results to elements in an unsigned 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 4 }; // 2 bytes per uint16, 1 byte per uint8, 4 bytes per uint32
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint16_t scale( const uint16_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_t_u( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint16` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_t_u( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_t_u_as_u_u( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning unsigned 32-bit integers to an unsigned 16-bit integer strided input array and assigns results to elements in an unsigned 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 2, 1, 4 }; // 2 bytes per uint16, 1 byte per uint8, 4 bytes per uint32
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint32_t scale( const uint32_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_t_u_as_u_u( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_t_u_as_u_u( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_u_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning unsigned 32-bit integers to an unsigned 32-bit integer strided input array, casts the callback's unsigned 32-bit integer return value to a double-precision floating-point number, and assigns results to elements in a double-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 4, 1, 8 }; // 4 bytes per uint32, 1 byte per uint8, 8 bytes per double
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint32_t scale( const uint32_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_u_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_u_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_u_d_as_d_d( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning double-precision floating-point numbers to an unsigned 32-bit integer strided input array and assigns results to elements in a double-precision floating-point strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 4, 1, 8 }; // 4 bytes per uint32, 1 byte per uint8, 8 bytes per double
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 double scale( const double x ) {
     return x + 10.0;
 }
 
 // Apply the callback:
 stdlib_strided_mask_u_d_as_d_d( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnFloat64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_u_d_as_d_d( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_u_u( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning unsigned 32-bit integers to an unsigned 32-bit integer strided input array and assigns results to elements in an unsigned 32-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 4, 1, 4 }; // 4 bytes per uint32, 1 byte per uint8
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint32_t scale( const uint32_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_u_u( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint32` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_u_u( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 #### stdlib_strided_mask_v_v( \*arrays[], \*shape, \*strides, \*fcn )
 
 Applies a unary callback accepting and returning unsigned 64-bit integers to an unsigned 64-bit integer strided input array and assigns results to elements in an unsigned 64-bit integer strided output array.
 
 ```c
 #include <stdint.h>
 
 // Create underlying byte arrays:
 uint8_t x[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 uint8_t m[] = { 0, 1, 0 };
 uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
 // Define a pointer to an array containing pointers to strided arrays:
 uint8_t *arrays[] = { x, m, out };
 
 // Define the strides:
 int64_t strides[] = { 8, 1, 8 }; // 8 bytes per uint64, 1 byte per uint8
 
 // Define the number of elements over which to iterate:
 int64_t shape[] = { 3 };
 
 // Define a callback:
 uint64_t scale( const uint64_t x ) {
     return x + 10;
 }
 
 // Apply the callback:
 stdlib_strided_mask_v_v( arrays, shape, strides, (void *)scale );
 ```
 
 The function accepts the following arguments:
 
 -   **arrays**: `[inout] uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `[in] int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `[in] int64_t*` array containing strides (in bytes) for each strided array.
 -   **fcn**: `[in] void*` a `UnaryFcnUint64` function to apply provided as a `void` pointer.
 
 ```c
 void stdlib_strided_mask_v_v( uint8_t *arrays[], int64_t *shape, int64_t *strides, void *fcn );
 ```
 
 <!-- macros -->
 
 * * *
 
 #### STDLIB_STRIDED_MSKUNARY_LOOP_PREAMBLE
 
 Macro containing the preamble for a loop which operates on strided array elements according to a strided mask array.
 
 ```c
 STDLIB_STRIDED_MSKUNARY_LOOP_PREMABLE {
     // Loop body...
 }
 ```
 
 The macro expects the following variables to be defined:
 
 -   **arrays**: `uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last element is a pointer to a strided output array.
 -   **shape**: `int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `int64_t*` array containing strides (in bytes) for each strided array.
 
 The macro defines the following variables:
 
 -   **ip1**: `uint8_t*` pointer to the first indexed element of the input strided array.
 -   **mp1**: `uint8_t*` pointer to the first indexed element of the mask strided array.
 -   **op1**: `uint8_t*` pointer to the first indexed element of the output strided array.
 -   **is1**: `int64_t` index increment for the input strided array.
 -   **ms1**: `int64_t` index increment for the mask strided array.
 -   **os1**: `int64_t` index increment for the output strided array.
 -   **n**: `int64_t` number of indexed elements.
 -   **i**: `int64_t` loop counter.
 
 ```c
 #define STDLIB_STRIDED_MSKUNARY_LOOP_PREAMBLE              \
     uint8_t *ip1 = arrays[ 0 ];                            \
     uint8_t *mp1 = arrays[ 1 ];                            \
     uint8_t *op1 = arrays[ 2 ];                            \
     int64_t is1 = strides[ 0 ];                            \
     int64_t ms1 = strides[ 1 ];                            \
     int64_t os1 = strides[ 2 ];                            \
     int64_t n = shape[ 0 ];                                \
     int64_t i;                                             \
     if ( n <= 0 ) {                                        \
         return;                                            \
     }                                                      \
     if ( is1 < 0 ) {                                       \
         ip1 += (1-n) * is1;                                \
     }                                                      \
     if ( ms1 < 0 ) {                                       \
         mp1 += (1-n) * ms1;                                \
     }                                                      \
     if ( os1 < 0 ) {                                       \
         op1 += (1-n) * os1;                                \
     }                                                      \
     for ( i = 0; i < n; i++, ip1 += is1, mp1 += ms1, op1 += os1 )
 ```
 
 #### STDLIB_STRIDED_MSKUNARY_LOOP_TWO_OUT_PREAMBLE
 
 Macro containing the preamble for a loop which operates on strided array elements according to a strided mask array and updates two strided output arrays.
 
 ```c
 STDLIB_STRIDED_MSKUNARY_LOOP_TWO_OUT_PREAMBLE {
     // Loop body...
 }
 ```
 
 The macro expects the following variables to be defined:
 
 -   **arrays**: `uint8_t**` array whose first element is a pointer to a strided input array, whose second element is a pointer to a strided mask array, and whose last two elements are pointers to strided output arrays.
 -   **shape**: `int64_t*` array whose only element is the number of elements over which to iterate.
 -   **strides**: `int64_t*` array containing strides (in bytes) for each strided array.
 
 The macro defines the following variables:
 
 -   **ip1**: `uint8_t*` pointer to the first indexed element of the input strided array.
 -   **mp1**: `uint8_t*` pointer to the first indexed element o the mask strided array.
 -   **op1**: `uint8_t*` pointer to the first indexed element of the first output strided array.
 -   **op2**: `uint8_t*` pointer to the first indexed element of the second output strided array.
 -   **is1**: `int64_t` index increment for the input strided array.
 -   **ms1**: `int64_t` index increment for the mask strided array.
 -   **os1**: `int64_t` index increment for the first output strided array.
 -   **os2**: `int64_t` index increment for the second output strided array.
 -   **n**: `int64_t` number of indexed elements.
 -   **i**: `int64_t` loop counter.
 
 ```c
 #define STDLIB_STRIDED_MSKUNARY_LOOP_TWO_OUT_PREAMBLE      \
     uint8_t *ip1 = arrays[ 0 ];                            \
     uint8_t *mp1 = arrays[ 1 ];                            \
     uint8_t *op1 = arrays[ 2 ];                            \
     uint8_t *op2 = arrays[ 3 ];                            \
     int64_t is1 = strides[ 0 ];                            \
     int64_t ms1 = strides[ 1 ];                            \
     int64_t os1 = strides[ 2 ];                            \
     int64_t os2 = strides[ 3 ];                            \
     int64_t n = shape[ 0 ];                                \
     int64_t i;                                             \
     if ( n <= 0 ) {                                        \
         return;                                            \
     }                                                      \
     if ( is1 < 0 ) {                                       \
         ip1 += (1-n) * is1;                                \
     }                                                      \
     if ( ms1 < 0 ) {                                       \
         mp1 += (1-n) * ms1;                                \
     }                                                      \
     if ( os1 < 0 ) {                                       \
         op1 += (1-n) * os1;                                \
     }                                                      \
     if ( os2 < 0 ) {                                       \
         op2 += (1-n) * os2;                                \
     }                                                      \
     for ( i = 0; i < n; i++, ip1 += os1, mp1 += ms1, op1 += os1, op2 += os2 )
 ```
 
 #### STDLIB_STRIDED_MSKUNARY_LOOP_INLINE( tin, tout, expr )
 
 Macro for a unary loop which inlines an expression.
 
 ```c
 STDLIB_STRIDED_MSKUNARY_LOOP_INLINE( double, double, *out = in1 * in1 )
 ```
 
 The macro expects the following arguments:
 
 -   **tin**: input strided array element type.
 -   **tout**: output strided array element type.
 -   **expr**: expression to inline.
 
 In addition to the variables defined by the `STDLIB_STRIDED_MSKUNARY_LOOP_PREAMBLE` macro, the macro defines the following variables:
 
 -   **in1**: `<tin>` input strided array element.
 -   **out**: `<tout>*` pointer to an output strided array element.
 
 The macro expects a provided expression to operate on `in1` and to store the result via `*out`.
 
 ```c
 #define STDLIB_STRIDED_MSKUNARY_LOOP_INLINE( tin, tout, expr )     \
     STDLIB_STRIDED_MSKUNARY_LOOP_PREAMBLE {                        \
         if ( *(uint8_t *)mp1 ) {                                   \
             continue;                                              \
         }                                                          \
         const tin in1 = *(tin *)ip1;                               \
         tout *out = (tout *)op1;                                   \
         expr;                                                      \
     }
 ```
 
 #### STDLIB_STRIDED_MSKUNARY_LOOP_CLBK( tin, tout )
 
 Macro for a unary loop which invokes a callback.
 
 ```c
 STDLIB_STRIDED_MSKUNARY_LOOP_CLBK( double, double )
 ```
 
 The macro expects the following arguments:
 
 -   **tin**: input strided array element data type.
 -   **tout**: output strided array element data type.
 
 In addition to the variables expected by `STDLIB_STRIDED_MSKUNARY_LOOP_PREAMBLE`, the macro expects the following variables to be defined:
 
 -   **f**: unary callback. 
 
 In addition to the variables defined by the `STDLIB_STRIDED_MSKUNARY_LOOP_PREAMBLE`, the macro defines the following variables:
 
 -   **x**: `<tin>` input strided array element.
 
 ```c
 #define STDLIB_STRIDED_MSKUNARY_LOOP_CLBK( tin, tout )     \
     STDLIB_STRIDED_MSKUNARY_LOOP_PREAMBLE {                \
         if ( *(uint8_t *)mp1 ) {                           \
             continue;                                      \
         }                                                  \
         const tin x = *(tin *)ip1;                         \
         *(tout *)op1 = (tout)f( x );                       \
     }
 ```
 
 #### STDLIB_STRIDED_MSKUNARY_LOOP_CLBK_ARG_CAST( tin, tout, fin )
 
 Macro for a unary loop which invokes a callback requiring arguments be explicitly cast to a different type.
 
 ```c
 STDLIB_STRIDED_MSKUNARY_LOOP_CLBK_ARG_CAST( float, float, double )
 ```
 
 The macro expects the following arguments:
 
 -   **tin**: input strided array element data type.
 -   **tout**: output strided array element data type.
 -   **fin**: callback argument data type.
 
 In addition to the variables expected by `STDLIB_STRIDED_MSKUNARY_LOOP_PREAMBLE`, the macro expects the following variables to be defined:
 
 -   **f**: unary callback. 
 
 In addition to the variables defined by the `STDLIB_STRIDED_MSKUNARY_LOOP_PREAMBLE`, the macro defines the following variables:
 
 -   **x**: `<tin>` input strided array element.
 
 ```c
 #define STDLIB_STRIDED_MSKUNARY_LOOP_CLBK_ARG_CAST( tin, tout, fin )  \
     STDLIB_STRIDED_MSKUNARY_LOOP_PREAMBLE {                           \
         if ( *(uint8_t *)mp1 ) {                                      \
             continue;                                                 \
         }                                                             \
         const tin x = *(tin *)ip1;                                    \
         *(tout *)op1 = (tout)f( (fin)x );                             \
     }
 ```
 
 </section>
 
 <!-- /.usage -->
 
 <!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
 
 <section class="notes">
 
 </section>
 
 <!-- /.notes -->
 
 <!-- C API usage examples. -->
 
 * * *
 
 <section class="examples">
 
 ### Examples
 
 ```c
 #include "stdlib/strided/base/mskunary.h"
 #include <stdint.h>
 #include <stdio.h>
 #include <inttypes.h>
 
 // Define a callback:
 static double scale( const double x ) {
     return x * 10.0;
 }
 
 int main() {
     // Create underlying byte arrays:
     uint8_t x[] = { 1, 4, 7 };
     uint8_t m[] = { 0, 1, 0 };
     uint8_t out[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
     // Define a pointer to an array containing pointers to strided arrays:
     uint8_t *arrays[] = { x, m, out };
 
     // Define the strides:
     int64_t strides[] = { 1, 1, 8 }; // 1 byte per uint8, 8 bytes per double
 
     // Define the number of elements over which to iterate:
     int64_t shape[] = { 3 };
 
     // Apply the callback:
     stdlib_strided_mask_b_d_as_d_d( arrays, shape, strides, (void *)scale );
 
     // Print the contents of the output array:
     uint8_t *op1 = out;
     for ( int64_t i = 0; i < shape[0]; i++, op1 += strides[2] ) {
         const double v = *(double *)op1;
         printf( "out[ %"PRId64" ] = %lf\n", i, v );
     }
 }
 ```
 
 </section>
 
 <!-- /.examples -->
 
 </section>
 
 <!-- /.c -->
 
 <section class="links">
 
 [mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray
 
 </section>
 
 <!-- /.links -->