From 3d4e87b93c506f37807be0a8d84a352c88310bb7 Mon Sep 17 00:00:00 2001 From: Siddhram Date: Mon, 17 Aug 2026 23:17:04 +0530 Subject: [PATCH] feat: add C implementation for blas/ext/base/ndarray/zsumkbn --- .../blas/ext/base/ndarray/zsumkbn/README.md | 158 +++++++++++++ .../ndarray/zsumkbn/benchmark/benchmark.js | 2 +- .../zsumkbn/benchmark/benchmark.native.js | 115 ++++++++++ .../base/ndarray/zsumkbn/benchmark/c/Makefile | 146 ++++++++++++ .../zsumkbn/benchmark/c/benchmark.length.c | 193 ++++++++++++++++ .../blas/ext/base/ndarray/zsumkbn/binding.gyp | 170 ++++++++++++++ .../base/ndarray/zsumkbn/examples/c/Makefile | 146 ++++++++++++ .../base/ndarray/zsumkbn/examples/c/example.c | 77 +++++++ .../ext/base/ndarray/zsumkbn/include.gypi | 53 +++++ .../stdlib/blas/ext/base/ndarray/zsumkbn.h | 41 ++++ .../ext/base/ndarray/zsumkbn/lib/index.js | 16 +- .../ext/base/ndarray/zsumkbn/lib/native.js | 62 ++++++ .../ext/base/ndarray/zsumkbn/manifest.json | 119 ++++++++++ .../ext/base/ndarray/zsumkbn/package.json | 4 + .../ext/base/ndarray/zsumkbn/src/Makefile | 70 ++++++ .../blas/ext/base/ndarray/zsumkbn/src/addon.c | 62 ++++++ .../blas/ext/base/ndarray/zsumkbn/src/main.c | 34 +++ .../ext/base/ndarray/zsumkbn/test/test.js | 180 +++------------ .../base/ndarray/zsumkbn/test/test.main.js | 199 +++++++++++++++++ .../base/ndarray/zsumkbn/test/test.native.js | 208 ++++++++++++++++++ 20 files changed, 1902 insertions(+), 153 deletions(-) create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/benchmark/benchmark.native.js create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/benchmark/c/Makefile create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/benchmark/c/benchmark.length.c create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/binding.gyp create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/examples/c/Makefile create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/examples/c/example.c create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/include.gypi create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/include/stdlib/blas/ext/base/ndarray/zsumkbn.h create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/lib/native.js create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/manifest.json create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/src/Makefile create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/src/addon.c create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/src/main.c create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/test/test.main.js create mode 100644 lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/test/test.native.js diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/README.md b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/README.md index bed4b251e07b..bc2e89c7c298 100644 --- a/lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/README.md +++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zsumkbn/README.md @@ -104,6 +104,164 @@ console.log( v ); + + +* * * + +
+ +## C APIs + + + +
+ +
+ + + + + +
+ +### Usage + +```c +#include "stdlib/blas/ext/base/ndarray/zsumkbn.h" +``` + +#### stdlib_blas_ext_zsumkbn( arrays ) + +Computes the sum of all elements in a one-dimensional double-precision complex floating-point ndarray using an improved Kahan–Babuška algorithm. + +```c +#include "stdlib/complex/float64/ctor.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 "stdlib/complex/float64/real.h" +#include "stdlib/complex/float64/imag.h" +#include + +// Create an ndarray: +const double data[] = { 1.0, 2.0, 3.0, 4.0 }; +int64_t shape[] = { 2 }; +int64_t strides[] = { STDLIB_NDARRAY_COMPLEX128_BYTES_PER_ELEMENT }; +int8_t submodes[] = { STDLIB_NDARRAY_INDEX_ERROR }; + +struct ndarray *x = stdlib_ndarray_allocate( STDLIB_NDARRAY_COMPLEX128, (uint8_t *)data, 1, shape, strides, 0, STDLIB_NDARRAY_ROW_MAJOR, STDLIB_NDARRAY_INDEX_ERROR, 1, submodes ); + +// Compute the sum: +const struct ndarray *arrays[] = { x }; +stdlib_complex128_t v = stdlib_blas_ext_zsumkbn( arrays ); + +double re = stdlib_complex128_real( v ); +// returns 4.0 + +double im = stdlib_complex128_imag( v ); +// returns 6.0 + +// Free allocated memory: +stdlib_ndarray_free( x ); +``` + +The function accepts the following arguments: + +- **arrays**: `[in] struct ndarray**` list containing a one-dimensional input ndarray. + +```c +stdlib_complex128_t stdlib_blas_ext_zsumkbn( const struct ndarray *arrays[] ); +``` + +
+ + + + + +
+ +
+ + + + + +
+ +### Examples + +```c +#include "stdlib/blas/ext/base/ndarray/zsumkbn.h" +#include "stdlib/complex/float64/ctor.h" +#include "stdlib/complex/float64/real.h" +#include "stdlib/complex/float64/imag.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 a data buffer: + const double data[] = { 1.0, -2.0, 3.0, -4.0, 5.0, -6.0, 7.0, -8.0 }; + + // 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_COMPLEX128_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 an ndarray: + struct ndarray *x = stdlib_ndarray_allocate( STDLIB_NDARRAY_COMPLEX128, (uint8_t *)data, ndims, shape, strides, offset, order, imode, nsubmodes, submodes ); + if ( x == NULL ) { + fprintf( stderr, "Error allocating memory.\n" ); + exit( 1 ); + } + + // Define a list of ndarrays: + const struct ndarray *arrays[] = { x }; + + // Compute the sum: + stdlib_complex128_t v = stdlib_blas_ext_zsumkbn( arrays ); + + // Print the result: + printf( "sum: %lf + %lfi\n", stdlib_complex128_real( v ), stdlib_complex128_imag( v ) ); + + // Free allocated memory: + stdlib_ndarray_free( x ); +} +``` + +
+ + + +
+ + +