Auto-generated commit

Author: stdlib-bot

.editorconfig

@@ -86,7 +86,6 @@ indent_style = tab
 [*.{f,f.txt}]
 indent_style = space
 indent_size = 2
-insert_final_newline = false
 
 # Set properties for shell files:
 [*.{sh,sh.txt}]

CHANGELOG.md

@@ -4,14 +4,25 @@
 
 <section class="release" id="unreleased">
 
-## Unreleased (2024-12-23)
+## Unreleased (2025-01-18)
+
+<section class="features">
+
+### Features
+
+-   [`6641a29`](https://github.com/stdlib-js/stdlib/commit/6641a29ca92ada4779b1a55d5c681cf375eae791) - add C `ndarray` API and refactor `blas/ext/base/scusum` [(#4799)](https://github.com/stdlib-js/stdlib/pull/4799)
+
+</section>
+
+<!-- /.features -->
 
 <section class="commits">
 
 ### Commits
 
 <details>
 
+-   [`6641a29`](https://github.com/stdlib-js/stdlib/commit/6641a29ca92ada4779b1a55d5c681cf375eae791) - **feat:** add C `ndarray` API and refactor `blas/ext/base/scusum` [(#4799)](https://github.com/stdlib-js/stdlib/pull/4799) _(by Muhammad Haris)_
 -   [`62364f6`](https://github.com/stdlib-js/stdlib/commit/62364f62ea823a3b52c2ad25660ecd80c71f8f36) - **style:** fix C comment alignment _(by Philipp Burckhardt)_
 
 </details>
@@ -24,8 +35,9 @@
 
 ### Contributors
 
-A total of 1 person contributed to this release. Thank you to this contributor:
+A total of 2 people contributed to this release. Thank you to the following contributors:
 
+-   Muhammad Haris
 -   Philipp Burckhardt
 
 </section>

CONTRIBUTORS

@@ -27,6 +27,7 @@ Daniel Killenberger <daniel.killenberger@gmail.com>
 Daniel Yu <40680511+Daniel777y@users.noreply.github.com>
 Debashis Maharana <debashismaharana7854@gmail.com>
 Desh Deepak Kant <118960904+DeshDeepakKant@users.noreply.github.com>
+Dhruv Arvind Singh <154677013+DhruvArvindSingh@users.noreply.github.com>
 Divyansh Seth <59174836+sethdivyansh@users.noreply.github.com>
 Dominic Lim <46486515+domlimm@users.noreply.github.com>
 Dominik Moritz <domoritz@gmail.com>
@@ -49,6 +50,7 @@ Joey Reed <joeyrreed@gmail.com>
 Jordan Gallivan <115050475+Jordan-Gallivan@users.noreply.github.com>
 Joris Labie <joris.labie1@gmail.com>
 Justin Dennison <justin1dennison@gmail.com>
+Karan Anand <119553199+anandkaranubc@users.noreply.github.com>
 Karthik Prakash <116057817+skoriop@users.noreply.github.com>
 Kohantika Nath <145763549+kohantikanath@users.noreply.github.com>
 Krishnendu Das <86651039+itskdhere@users.noreply.github.com>
@@ -117,7 +119,7 @@ UtkershBasnet <119008923+UtkershBasnet@users.noreply.github.com>
 Vaibhav Patel <98279986+noobCoderVP@users.noreply.github.com>
 Varad Gupta <varadgupta21@gmail.com>
 Vinit Pandit <106718914+MeastroZI@users.noreply.github.com>
-Vivek maurya <155618190+vivekmaurya001@users.noreply.github.com>
+Vivek Maurya <vm8118134@gmail.com>
 Xiaochuan Ye <tap91624@gmail.com>
 Yaswanth Kosuru <116426380+yaswanthkosuru@users.noreply.github.com>
 Yernar Yergaziyev <yernar.yergaziyev@erg.kz>

NOTICE

@@ -1 +1 @@
-Copyright (c) 2016-2024 The Stdlib Authors.
+Copyright (c) 2016-2025 The Stdlib Authors.

README.md

@@ -94,11 +94,11 @@ The function has the following parameters:
 -   **N**: number of indexed elements.
 -   **sum**: initial sum.
 -   **x**: input [`Float32Array`][@stdlib/array/float32].
--   **strideX**: index increment for `x`.
+-   **strideX**: stride length for `x`.
 -   **y**: output [`Float32Array`][@stdlib/array/float32].
--   **strideY**: index increment for `y`.
+-   **strideY**: stride length for `y`.
 
-The `N` and `stride` parameters determine which elements in the strided arrays are accessed at runtime. For example, to compute the cumulative sum of every other element in the strided input array,
+The `N` and stride parameters determine which elements in the strided arrays are accessed at runtime. For example, to compute the cumulative sum of every other element:
 
 ```javascript
 var Float32Array = require( '@stdlib/array-float32' );
@@ -148,7 +148,7 @@ The function has the following additional parameters:
 -   **offsetX**: starting index for `x`.
 -   **offsetY**: starting index for `y`.
 
-While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying `buffer`, offsetX and offsetY parameters support indexing semantics based on a starting indices. For example, to calculate the cumulative sum of every other value in the strided input array starting from the second value and to store in the last `N` elements of the strided output array starting from the last element
+While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameters support indexing semantics based on starting indices. For example, to calculate the cumulative sum of every other element in the strided input array starting from the second element and to store in the last `N` elements of the strided output array starting from the last element:
 
 ```javascript
 var Float32Array = require( '@stdlib/array-float32' );
@@ -181,14 +181,17 @@ scusum.ndarray( 4, 0.0, x, 2, 1, y, -1, y.length-1 );
 <!-- eslint no-undef: "error" -->
 
 ```javascript
-var discreteUniform = require( '@stdlib/random-base-discrete-uniform' ).factory;
-var filledarrayBy = require( '@stdlib/array-filled-by' );
-var Float32Array = require( '@stdlib/array-float32' );
+var discreteUniform = require( '@stdlib/random-array-discrete-uniform' );
 var scusum = require( '@stdlib/blas-ext-base-scusum' );
 
-var x = filledarrayBy( 10, 'float32', discreteUniform( 0, 100 ) );
-var y = new Float32Array( x.length );
+var x = discreteUniform( 10, -100, 100, {
+    'dtype': 'float32'
+});
 console.log( x );
+
+var y = discreteUniform( 10, -100, 100, {
+    'dtype': 'float32'
+});
 console.log( y );
 
 scusum( x.length, 0.0, x, 1, y, -1 );
@@ -199,6 +202,138 @@ console.log( y );
 
 <!-- /.examples -->
 
+<!-- C interface documentation. -->
+
+* * *
+
+<section class="c">
+
+## C APIs
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- C usage documentation. -->
+
+<section class="usage">
+
+### Usage
+
+```c
+#include "stdlib/blas/ext/base/scusum.h"
+```
+
+#### stdlib_strided_scusum( N, sum, \*X, strideX, \*Y, strideY )
+
+Computes the cumulative sum of single-precision floating-point strided array elements.
+
+```c
+const float x[] = { 1.0f, 2.0f, 3.0f, 4.0f };
+float y[] = { 0.0f, 0.0f, 0.0f, 0.0f };
+
+stdlib_strided_scusum( 4, 0.0f, x, 1, y, 1 );
+```
+
+The function accepts the following arguments:
+
+-   **N**: `[in] CBLAS_INT` number of indexed elements.
+-   **sum**: `[in] float` initial sum.
+-   **X**: `[in] float*` input array.
+-   **strideX**: `[in] CBLAS_INT` stride length for `X`.
+-   **Y**: `[out] float*` output array.
+-   **strideY**: `[in] CBLAS_INT` stride length for `Y`.
+
+```c
+void stdlib_strided_scusum( const CBLAS_INT N, const float sum, const float *X, const CBLAS_INT strideX, float *Y, const CBLAS_INT strideY );
+```
+
+<!-- lint disable maximum-heading-length -->
+
+#### stdlib_strided_scusum_ndarray( N, sum, \*X, strideX, offsetX, \*Y, strideY, offsetY )
+
+<!-- lint enable maximum-heading-length -->
+
+Computes the cumulative sum of single-precision floating-point strided array elements using alternative indexing semantics.
+
+```c
+const float x[] = { 1.0f, 2.0f, 3.0f, 4.0f };
+float y[] = { 0.0f, 0.0f, 0.0f, 0.0f };
+
+stdlib_strided_scusum_ndarray( 4, 0.0f, x, 1, 0, y, 1, 0 );
+```
+
+The function accepts the following arguments:
+
+-   **N**: `[in] CBLAS_INT` number of indexed elements.
+-   **sum**: `[in] float` initial sum.
+-   **X**: `[in] float*` input array.
+-   **strideX**: `[in] CBLAS_INT` stride length for `X`.
+-   **offsetX**: `[in] CBLAS_INT` starting index for `X`.
+-   **Y**: `[out] float*` output array.
+-   **strideY**: `[in] CBLAS_INT` stride length for `Y`.
+-   **offsetY**: `[in] CBLAS_INT` starting index for `Y`.
+
+```c
+void stdlib_strided_scusum_ndarray( const CBLAS_INT N, const float sum, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, float *Y, const CBLAS_INT strideY, const CBLAS_INT offsetY );
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- C API usage examples. -->
+
+<section class="examples">
+
+### Examples
+
+```c
+#include "stdlib/blas/ext/base/scusum.h"
+#include <stdio.h>
+
+int main( void ) {
+    // Create strided arrays:
+    const float x[] = { 1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 6.0f, 7.0f, 8.0f };
+    float y[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
+
+    // Specify the number of elements:
+    const int N = 4;
+
+    // Specify stride lengths:
+    const int strideX = 2;
+    const int strideY = -2;
+
+    // Compute the cumulative sum:
+    stdlib_strided_scusum( N, 0.0f, x, strideX, y, strideY );
+
+    // Print the result:
+    for ( int i = 0; i < 8; i++ ) {
+        printf( "y[ %d ] = %f\n", i, y[ i ] );
+    }
+}
+```
+
+</section>
+
+<!-- /.examples -->
+
+</section>
+
+<!-- /.c -->
+
 <section class="references">
 
 </section>
@@ -247,7 +382,7 @@ See [LICENSE][stdlib-license].
 
 ## Copyright
 
-Copyright &copy; 2016-2024. The Stdlib [Authors][stdlib-authors].
+Copyright &copy; 2016-2025. The Stdlib [Authors][stdlib-authors].
 
 </section>
 

benchmark/benchmark.js

@@ -21,9 +21,7 @@
 // MODULES //
 
 var bench = require( '@stdlib/bench-harness' );
-var uniform = require( '@stdlib/random-base-uniform' ).factory;
-var filledarrayBy = require( '@stdlib/array-filled-by' );
-var Float32Array = require( '@stdlib/array-float32' );
+var uniform = require( '@stdlib/random-array-uniform' );
 var isnanf = require( '@stdlib/math-base-assert-is-nanf' );
 var pow = require( '@stdlib/math-base-special-pow' );
 var pkg = require( './../package.json' ).name;
@@ -32,7 +30,9 @@ var scusum = require( './../lib/scusum.js' );
 
 // VARIABLES //
 
-var rand = uniform( -10.0, 10.0 );
+var options = {
+	'dtype': 'float32'
+};
 
 
 // FUNCTIONS //
@@ -45,8 +45,8 @@ var rand = uniform( -10.0, 10.0 );
 * @returns {Function} benchmark function
 */
 function createBenchmark( len ) {
-	var x = filledarrayBy( len, 'float32', rand );
-	var y = new Float32Array( len );
+	var x = uniform( len, -100, 100, options );
+	var y = uniform( len, -100, 100, options );
 	return benchmark;
 
 	function benchmark( b ) {

benchmark/benchmark.native.js

@@ -22,11 +22,9 @@
 
 var resolve = require( 'path' ).resolve;
 var bench = require( '@stdlib/bench-harness' );
-var uniform = require( '@stdlib/random-base-uniform' ).factory;
-var filledarrayBy = require( '@stdlib/array-filled-by' );
+var uniform = require( '@stdlib/random-array-uniform' );
 var isnanf = require( '@stdlib/math-base-assert-is-nanf' );
 var pow = require( '@stdlib/math-base-special-pow' );
-var Float32Array = require( '@stdlib/array-float32' );
 var tryRequire = require( '@stdlib/utils-try-require' );
 var pkg = require( './../package.json' ).name;
 
@@ -37,7 +35,9 @@ var scusum = tryRequire( resolve( __dirname, './../lib/scusum.native.js' ) );
 var opts = {
 	'skip': ( scusum instanceof Error )
 };
-var rand = uniform( -10.0, 10.0 );
+var options = {
+	'dtype': 'float32'
+};
 
 
 // FUNCTIONS //
@@ -50,8 +50,8 @@ var rand = uniform( -10.0, 10.0 );
 * @returns {Function} benchmark function
 */
 function createBenchmark( len ) {
-	var x = filledarrayBy( len, 'float32', rand );
-	var y = new Float32Array( len );
+	var x = uniform( len, -100, 100, options );
+	var y = uniform( len, -100, 100, options );
 	return benchmark;
 
 	function benchmark( b ) {

benchmark/benchmark.ndarray.js

@@ -21,18 +21,18 @@
 // MODULES //
 
 var bench = require( '@stdlib/bench-harness' );
-var uniform = require( '@stdlib/random-base-uniform' ).factory;
-var filledarrayBy = require( '@stdlib/array-filled-by' );
+var uniform = require( '@stdlib/random-array-uniform' );
 var isnanf = require( '@stdlib/math-base-assert-is-nanf' );
 var pow = require( '@stdlib/math-base-special-pow' );
-var Float32Array = require( '@stdlib/array-float32' );
 var pkg = require( './../package.json' ).name;
 var scusum = require( './../lib/ndarray.js' );
 
 
 // VARIABLES //
 
-var rand = uniform( -10.0, 10.0 );
+var options = {
+	'dtype': 'float32'
+};
 
 
 // FUNCTIONS //
@@ -45,8 +45,8 @@ var rand = uniform( -10.0, 10.0 );
 * @returns {Function} benchmark function
 */
 function createBenchmark( len ) {
-	var x = filledarrayBy( len, 'float32', rand );
-	var y = new Float32Array( len );
+	var x = uniform( len, -100, 100, options );
+	var y = uniform( len, -100, 100, options );
 	return benchmark;
 
 	function benchmark( b ) {