main.c (2044B)
1 /** 2 * @license Apache-2.0 3 * 4 * Copyright (c) 2018 The Stdlib Authors. 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 #include "stdlib/ndarray/base/assert/is_row_major_contiguous.h" 20 #include "stdlib/ndarray/base/iteration_order.h" 21 #include "stdlib/ndarray/base/assert/is_single_segment_compatible.h" 22 #include "stdlib/ndarray/base/assert/is_row_major.h" 23 #include "stdlib/ndarray/dtypes.h" 24 #include <stdint.h> 25 26 /** 27 * Determines if an array is row-major contiguous. 28 * 29 * ## Notes 30 * 31 * - The function returns `1` if row-major contiguous and `0` otherwise. 32 * 33 * @param dtype data type 34 * @param ndims number of dimensions 35 * @param shape array shape (dimensions) 36 * @param strides array strides (in bytes) 37 * @param offset index offset 38 * @return value indicating if row-major contiguous 39 * 40 * @example 41 * #include "stdlib/ndarray/base/assert/is_row_major_contiguous.h" 42 * #include "stdlib/ndarray/dtypes.h" 43 * 44 * int64_t ndims = 2; 45 * int64_t shape[] = { 10, 10 }; 46 * int64_t strides[] = { 10, 1 }; 47 * int64_t offset = 0; 48 * 49 * int8_t b = stdlib_ndarray_is_row_major_contiguous( STDLIB_NDARRAY_UINT8, ndims, shape, strides, offset ); 50 * // returns 1 51 */ 52 int8_t stdlib_ndarray_is_row_major_contiguous( enum STDLIB_NDARRAY_DTYPE dtype, int64_t ndims, int64_t *shape, int64_t *strides, int64_t offset ) { 53 if ( 54 stdlib_ndarray_iteration_order( ndims, strides ) != 0 && 55 stdlib_ndarray_is_row_major( ndims, strides ) != 0 && 56 stdlib_ndarray_is_single_segment_compatible( dtype, ndims, shape, strides, offset ) != 0 57 ) { 58 return 1; 59 } 60 return 0; 61 }