61 lines
2.1 KiB
C
61 lines
2.1 KiB
C
/**
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* @license Apache-2.0
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*
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* Copyright (c) 2021 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "stdlib/math/strided/special/smskinv.h"
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#include "stdlib/strided/base/smskmap.h"
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#include "stdlib/math/base/special/invf.h"
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#include <stdint.h>
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/**
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* Computes the multiplicative inverse for each element in a single-precision floating-point strided array `X` according to a strided mask array and assigns the results to elements in a single-precision floating-point strided array `Y`.
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*
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* @param N number of indexed elements
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* @param X input array
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* @param strideX X stride length
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* @param Mask mask array
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* @param strideMask Mask stride length
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* @param Y destination array
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* @param strideY Y stride length
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*
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* @example
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* include <stdint.h>
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*
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* // Create an input strided array:
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* float x[] = { -20.0, -1.0, 2.0, 4.0, 10.0, 100.0, 0.0, -0.0 };
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*
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* // Create a mask strided array:
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* uint8_t m[] = { 0, 0, 1, 0, 1, 1, 0, 0 };
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*
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* // Create an output strided array:
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* float y[] = { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 };
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*
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* // Specify the number of elements:
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* int64_t N = 4;
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*
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* // Specify the stride lengths:
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* int64_t strideX = 2;
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* int64_t strideM = 2;
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* int64_t strideY = 2;
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*
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* // Compute the results:
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* stdlib_strided_smskinv( N, x, strideX, m, strideM, y, strideY );
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*/
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void stdlib_strided_smskinv( const int64_t N, const float *X, const int64_t strideX, const uint8_t *Mask, const int64_t strideMask, float *Y, const int64_t strideY ) {
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stdlib_strided_smskmap( N, X, strideX, Mask, strideMask, Y, strideY, stdlib_base_invf );
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}
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