dramp.c (1792B)
1 /** 2 * @license Apache-2.0 3 * 4 * Copyright (c) 2020 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/math/strided/special/dramp.h" 20 #include "stdlib/strided/base/dmap.h" 21 #include "stdlib/math/base/special/ramp.h" 22 #include <stdint.h> 23 24 /** 25 * Evaluates the ramp function for each element in a double-precision floating-point strided array `X` and assigns the results to elements in a single-precision floating-point strided array `Y`. 26 * 27 * @param N number of indexed elements 28 * @param X input array 29 * @param strideX X stride length 30 * @param Y destination array 31 * @param strideY Y stride length 32 * 33 * @example 34 * #include <stdint.h> 35 * 36 * // Create an input strided array: 37 * double x[] = { 1.1, 2.5, -3.5, 4.0, -5.9, 6.4, -7.0, 8.2 }; 38 * 39 * // Create an output strided array: 40 * double y[] = { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 }; 41 * 42 * // Specify the number of elements: 43 * int64_t N = 4; 44 * 45 * // Specify the stride lengths: 46 * int64_t strideX = 2; 47 * int64_t strideY = 2; 48 * 49 * // Compute the results: 50 * stdlib_strided_dramp( N, x, strideX, y, strideY ); 51 */ 52 void stdlib_strided_dramp( const int64_t N, const double *X, const int64_t strideX, double *Y, const int64_t strideY ) { 53 stdlib_strided_dmap( N, X, strideX, Y, strideY, stdlib_base_ramp ); 54 }