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refactor: move
ndarray API to separate source file
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55 changes: 55 additions & 0 deletions
55
lib/node_modules/@stdlib/blas/base/daxpy/src/daxpy_ndarray.c
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| /** | ||
| * @license Apache-2.0 | ||
| * | ||
| * Copyright (c) 2018 The Stdlib Authors. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
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| #include "stdlib/blas/base/daxpy.h" | ||
| #include "stdlib/blas/base/shared.h" | ||
| #include "stdlib/strided/base/stride2offset.h" | ||
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| /** | ||
| * Multiplies a vector `X` by a constant and adds the result to `Y` using alternative indexing semantics. | ||
| * | ||
| * @param N number of indexed elements | ||
| * @param alpha scalar | ||
| * @param X input array | ||
| * @param strideX X stride length | ||
| * @param offsetX starting X index | ||
| * @param Y output array | ||
| * @param strideY Y stride length | ||
| * @param offsetY starting Y index | ||
| */ | ||
| void API_SUFFIX(c_daxpy_ndarray)( const CBLAS_INT N, const double alpha, const double *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, double *Y, const CBLAS_INT strideY, const CBLAS_INT offsetY ) { | ||
| CBLAS_INT ix; | ||
| CBLAS_INT iy; | ||
| CBLAS_INT i; | ||
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||
| if ( N <= 0 ) { | ||
| return; | ||
| } | ||
| // If `alpha` is `0`, then `y` is unchanged... | ||
| if ( alpha == 0.0 ) { | ||
| return; | ||
| } | ||
| ix = offsetX; | ||
| iy = offsetY; | ||
| for ( i = 0; i < N; i++ ) { | ||
| Y[ iy ] += alpha * X[ ix ]; | ||
| ix += strideX; | ||
| iy += strideY; | ||
| } | ||
| return; | ||
| } |
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