From 8e242f38ff3a16c747f7b6c2f080f453248895c7 Mon Sep 17 00:00:00 2001 From: Mayur Jogade Date: Sat, 3 Oct 2026 12:05:49 +0530 Subject: [PATCH 1/2] feat: add C implementation for `blas/ext/base/ndarray/dcusumors` --- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown_pkg_readmes status: passed - task: lint_markdown_docs status: na - task: lint_markdown status: na - task: lint_package_json status: passed - task: lint_repl_help status: na - task: lint_javascript_src status: passed - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: passed - task: lint_javascript_benchmarks status: passed - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: missing_dependencies - task: lint_c_examples status: missing_dependencies - task: lint_c_benchmarks status: missing_dependencies - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- .../blas/ext/base/ndarray/dcusumors/README.md | 177 +++++++++++++++ .../ndarray/dcusumors/benchmark/benchmark.js | 2 +- .../dcusumors/benchmark/benchmark.native.js | 113 ++++++++++ .../ndarray/dcusumors/benchmark/c/Makefile | 146 ++++++++++++ .../dcusumors/benchmark/c/benchmark.length.c | 210 ++++++++++++++++++ .../ext/base/ndarray/dcusumors/binding.gyp | 170 ++++++++++++++ .../ndarray/dcusumors/examples/c/Makefile | 146 ++++++++++++ .../ndarray/dcusumors/examples/c/example.c | 92 ++++++++ .../ext/base/ndarray/dcusumors/include.gypi | 53 +++++ .../stdlib/blas/ext/base/ndarray/dcusumors.h | 40 ++++ .../ext/base/ndarray/dcusumors/lib/index.js | 16 +- .../ext/base/ndarray/dcusumors/lib/native.js | 73 ++++++ .../ext/base/ndarray/dcusumors/manifest.json | 109 +++++++++ .../ext/base/ndarray/dcusumors/package.json | 4 + .../ext/base/ndarray/dcusumors/src/Makefile | 70 ++++++ .../ext/base/ndarray/dcusumors/src/addon.c | 67 ++++++ .../ext/base/ndarray/dcusumors/src/main.c | 53 +++++ .../ext/base/ndarray/dcusumors/test/test.js | 165 +++----------- .../base/ndarray/dcusumors/test/test.main.js | 186 ++++++++++++++++ .../ndarray/dcusumors/test/test.native.js | 195 ++++++++++++++++ 20 files changed, 1948 insertions(+), 139 deletions(-) create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/benchmark/benchmark.native.js create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/benchmark/c/Makefile create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/benchmark/c/benchmark.length.c create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/binding.gyp create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/examples/c/Makefile create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/examples/c/example.c create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/include.gypi create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/include/stdlib/blas/ext/base/ndarray/dcusumors.h create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/lib/native.js create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/manifest.json create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/src/Makefile create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/src/addon.c create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/src/main.c create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/test/test.main.js create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/test/test.native.js diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/README.md b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/README.md index 3a9e4fbe659d..9d5b21d9544e 100644 --- a/lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/README.md +++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dcusumors/README.md @@ -114,6 +114,183 @@ console.log( ndarray2array( v ) ); + + +* * * + +
+ +## C APIs + + + +
+ +
+ + + + + +
+ +### Usage + +```c +#include "stdlib/blas/ext/base/ndarray/dcusumors.h" +``` + +#### stdlib_blas_ext_dcusumors( arrays ) + +Computes the cumulative sum of a one-dimensional double-precision floating-point ndarray using ordinary recursive summation. + +```c +#include "stdlib/ndarray/ctor.h" +#include "stdlib/ndarray/dtypes.h" +#include "stdlib/ndarray/index_modes.h" +#include "stdlib/ndarray/orders.h" +#include "stdlib/ndarray/base/bytes_per_element.h" +#include + +// Create ndarrays: +const double dataX[] = { 1.0, 3.0, 4.0, 2.0 }; +double dataY[] = { 0.0, 0.0, 0.0, 0.0 }; +int64_t shape[] = { 4 }; +int64_t strides[] = { STDLIB_NDARRAY_FLOAT64_BYTES_PER_ELEMENT }; +int8_t submodes[] = { STDLIB_NDARRAY_INDEX_ERROR }; + +struct ndarray *x = stdlib_ndarray_allocate( STDLIB_NDARRAY_FLOAT64, (uint8_t *)dataX, 1, shape, strides, 0, STDLIB_NDARRAY_ROW_MAJOR, STDLIB_NDARRAY_INDEX_ERROR, 1, submodes ); + +struct ndarray *y = stdlib_ndarray_allocate( STDLIB_NDARRAY_FLOAT64, (uint8_t *)dataY, 1, shape, strides, 0, STDLIB_NDARRAY_ROW_MAJOR, STDLIB_NDARRAY_INDEX_ERROR, 1, submodes ); + +// Create an ndarray containing the initial sum: +const double adata[] = { 0.0 }; +int64_t astrides[] = { 0 }; + +struct ndarray *initial = stdlib_ndarray_allocate( STDLIB_NDARRAY_FLOAT64, (uint8_t *)adata, 0, NULL, astrides, 0, STDLIB_NDARRAY_ROW_MAJOR, STDLIB_NDARRAY_INDEX_ERROR, 1, submodes ); + +// Perform computation: +const struct ndarray *arrays[] = { x, y, initial }; +stdlib_blas_ext_dcusumors( arrays ); + +// Free allocated memory: +stdlib_ndarray_free( x ); +stdlib_ndarray_free( y ); +stdlib_ndarray_free( initial ); +``` + +The function accepts the following arguments: + +- **arrays**: `[in] struct ndarray**` list containing the following ndarrays: + + - `[in] struct ndarray*` a one-dimensional input ndarray. + - `[out] struct ndarray*` a one-dimensional output ndarray. + - `[in] struct ndarray*` a zero-dimensional ndarray containing the initial sum. + +```c +void stdlib_blas_ext_dcusumors( const struct ndarray *arrays[] ); +``` + +
+ + + + + +
+ +
+ + + + + +
+ +### Examples + +```c +#include "stdlib/blas/ext/base/ndarray/dcusumors.h" +#include "stdlib/ndarray/ctor.h" +#include "stdlib/ndarray/dtypes.h" +#include "stdlib/ndarray/index_modes.h" +#include "stdlib/ndarray/orders.h" +#include "stdlib/ndarray/base/bytes_per_element.h" +#include +#include +#include + +int main( void ) { + // Create data buffers: + const double dataX[] = { 1.0, 3.0, 4.0, 2.0 }; + double dataY[] = { 0.0, 0.0, 0.0, 0.0 }; + + // Specify the number of array dimensions: + const int64_t ndims = 1; + + // Specify the array shape: + int64_t shape[] = { 4 }; + + // Specify the array strides: + int64_t strides[] = { STDLIB_NDARRAY_FLOAT64_BYTES_PER_ELEMENT }; + + // Specify the byte offset: + const int64_t offset = 0; + + // Specify the array order: + const enum STDLIB_NDARRAY_ORDER order = STDLIB_NDARRAY_ROW_MAJOR; + + // Specify the index mode: + const enum STDLIB_NDARRAY_INDEX_MODE imode = STDLIB_NDARRAY_INDEX_ERROR; + + // Specify the subscript index modes: + int8_t submodes[] = { STDLIB_NDARRAY_INDEX_ERROR }; + const int64_t nsubmodes = 1; + + // Create ndarrays: + struct ndarray *x = stdlib_ndarray_allocate( STDLIB_NDARRAY_FLOAT64, (uint8_t *)dataX, ndims, shape, strides, offset, order, imode, nsubmodes, submodes ); + + struct ndarray *y = stdlib_ndarray_allocate( STDLIB_NDARRAY_FLOAT64, (uint8_t *)dataY, ndims, shape, strides, offset, order, imode, nsubmodes, submodes ); + + // Create a data buffer for an ndarray containing the initial sum: + const double adata[] = { 0.0 }; + + // Specify the array strides for a zero-dimensional ndarray: + int64_t astrides[] = { 0 }; + + // Create an ndarray containing the initial sum: + struct ndarray *initial = stdlib_ndarray_allocate( STDLIB_NDARRAY_FLOAT64, (uint8_t *)adata, 0, NULL, astrides, 0, order, imode, nsubmodes, submodes ); + if ( x == NULL || y == NULL || initial == NULL ) { + fprintf( stderr, "Error allocating memory.\n" ); + exit( 1 ); + } + + // Define a list of ndarrays: + const struct ndarray *arrays[] = { x, y, initial }; + + // Perform computation: + stdlib_blas_ext_dcusumors( arrays ); + + // Print the result: + for ( int i = 0; i < 4; i++ ) { + printf( "y[ %i ] = %lf\n", i, dataY[ i ] ); + } + + // Free allocated memory: + stdlib_ndarray_free( x ); + stdlib_ndarray_free( y ); + stdlib_ndarray_free( initial ); +} +``` + +
+ + + +
+ + +