feat: add blas/ext/base/sindex-of

lib/node_modules/@stdlib/blas/ext/base/sindex-of/README.md

@@ -20,7 +20,7 @@ limitations under the License.
 
 # sindexOf
 
-> Return the index of a specified search element in a single-precision floating-point strided array.
+> Return the first index of a specified search element in a single-precision floating-point strided array.
 
 <!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
 
@@ -42,7 +42,7 @@ var sindexOf = require( '@stdlib/blas/ext/base/sindex-of' );
 
 #### sindexOf( N, searchElement, x, strideX )
 
-Returns the index of a specified search element in a single-precision floating-point strided array.
+Returns the first index of a specified search element in a single-precision floating-point strided array.
 
 ```javascript
 var Float32Array = require( '@stdlib/array/float32' );
@@ -100,7 +100,7 @@ var idx = sindexOf( 3, -6.0, x1, 2 );
 
 #### sindexOf.ndarray( N, searchElement, x, strideX, offsetX )
 
-Returns the index of a specified search element in a single-precision floating-point strided array using alternative indexing semantics.
+Returns the first index of a specified search element in a single-precision floating-point strided array using alternative indexing semantics.
 
 ```javascript
 var Float32Array = require( '@stdlib/array/float32' );
@@ -190,17 +190,17 @@ console.log( idx );
 ### Usage
 
 ```c
-#include "stdlib/blas/ext/base/sindexof.h"
+#include "stdlib/blas/ext/base/sindex_of.h"
 ```
 
-#### stdlib_strided_sindexOf( N, searchElement, \*X, strideX )
+#### stdlib_strided_sindex_of( N, searchElement, \*X, strideX )
 
-Returns the index of a specified search element in a single-precision floating-point strided array.
+Returns the first index of a specified search element in a single-precision floating-point strided array.
 
 ```c
 float x[] = { 1.0f, 2.0f, 3.0f, 4.0f };
 
-int idx = stdlib_strided_sindexOf( 4, 3.0f, x, 1 );
+int idx = stdlib_strided_sindex_of( 4, 3.0f, x, 1 );
 // returns 2
 ```
 
@@ -212,17 +212,17 @@ The function accepts the following arguments:
 -   **strideX**: `[in] CBLAS_INT` stride length.
 
 ```c
-CBLAS_INT N stdlib_strided_sindexOf( const CBLAS_INT N, const float searchElement, float *X, const CBLAS_INT strideX );
+CBLAS_INT N stdlib_strided_sindex_of( const CBLAS_INT N, const float searchElement, float *X, const CBLAS_INT strideX );
 ```
 
-#### stdlib_strided_sindexOf_ndarray( N, searchElement, \*X, strideX, offsetX )
+#### stdlib_strided_sindex_of_ndarray( N, searchElement, \*X, strideX, offsetX )
 
-Returns the index of a specified search element in a single-precision floating-point strided array using alternative indexing semantics.
+Returns the first index of a specified search element in a single-precision floating-point strided array using alternative indexing semantics.
 
 ```c
 float x[] = { 1.0f, 2.0f, 3.0f, 4.0f };
 
-int idx = stdlib_strided_sindexOf( 4, 3.0f, x, 1, 0 );
+int idx = stdlib_strided_sindex_of( 4, 3.0f, x, 1, 0 );
 // returns 2
 ```
 
@@ -235,7 +235,7 @@ The function accepts the following arguments:
 -   **offsetX**: `[in] CBLAS_INT` starting index.
 
 ```c
-CBLAS_INT stdlib_strided_sindexOf_ndarray( const CBLAS_INT N, const float searchElement, float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX );
+CBLAS_INT stdlib_strided_sindex_of_ndarray( const CBLAS_INT N, const float searchElement, float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX );
 ```
 
 </section>
@@ -257,7 +257,7 @@ CBLAS_INT stdlib_strided_sindexOf_ndarray( const CBLAS_INT N, const float search
 ### Examples
 
 ```c
-#include "stdlib/blas/ext/base/sindexof.h"
+#include "stdlib/blas/ext/base/sindex_of.h"
 #include <stdio.h>
 
 int main( void ) {
@@ -270,8 +270,8 @@ int main( void ) {
     // Specify a stride:
     const int strideX = 1;
 
-    // Fill the array:
-    int idx = stdlib_strided_sindexOf( N, 5.0f, x, strideX );
+    // Perform a search:
+    int idx = stdlib_strided_sindex_of( N, 5.0f, x, strideX );
 
     // Print the result:
     printf( "index value: %d\n", idx );

lib/node_modules/@stdlib/blas/ext/base/sindex-of/benchmark/benchmark.length.js → lib/node_modules/@stdlib/blas/ext/base/sindex-of/benchmark/benchmark.js

@@ -25,7 +25,7 @@ var pow = require( '@stdlib/math/base/special/pow' );
 var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
 var oneTo = require( '@stdlib/array/one-to' );
 var pkg = require( './../package.json' ).name;
-var sindexOf = require( './../lib' );
+var sindexOf = require( './../lib/sindex_of.js' );
 
 
 // FUNCTIONS //

lib/node_modules/@stdlib/blas/ext/base/sindex-of/benchmark/benchmark.native.js

@@ -0,0 +1,105 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var bench = require( '@stdlib/bench' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
+var oneTo = require( '@stdlib/array/one-to' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var sindexOf = tryRequire( resolve( __dirname, './../lib/sindex_of.native.js' ) );
+var opts = {
+	'skip': ( sindexOf instanceof Error )
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+	var x = oneTo( len, 'float32' );
+	return benchmark;
+
+	/**
+	* Benchmark function.
+	*
+	* @private
+	* @param {Benchmark} b - benchmark instance
+	*/
+	function benchmark( b ) {
+		var out;
+		var i;
+
+		b.tic();
+		for ( i = 0; i < b.iterations; i++ ) {
+			out = sindexOf( x.length, len+1, x, 1 );
+			if ( out !== out ) {
+				b.fail( 'should return an integer' );
+			}
+		}
+		b.toc();
+		if ( !isInteger( out ) ) {
+			b.fail( 'should return an integer' );
+		}
+		b.pass( 'benchmark finished' );
+		b.end();
+	}
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+	var len;
+	var min;
+	var max;
+	var f;
+	var i;
+
+	min = 1; // 10^min
+	max = 6; // 10^max
+
+	for ( i = min; i <= max; i++ ) {
+		len = pow( 10, i );
+
+		f = createBenchmark( len );
+		bench( pkg+'::native:len='+len, opts, f );
+	}
+}
+
+main();

lib/node_modules/@stdlib/blas/ext/base/sindex-of/benchmark/benchmark.ndarray.js

@@ -89,7 +89,7 @@ function main() {
 		len = pow( 10, i );
 
 		f = createBenchmark( len );
-		bench( pkg+':len='+len, f );
+		bench( pkg+':ndarray:len='+len, f );
 	}
 }
 

lib/node_modules/@stdlib/blas/ext/base/sindex-of/benchmark/benchmark.ndarray.native.js

@@ -0,0 +1,105 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var bench = require( '@stdlib/bench' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
+var oneTo = require( '@stdlib/array/one-to' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var sindexOf = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) );
+var opts = {
+	'skip': ( sindexOf instanceof Error )
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+	var x = oneTo( len, 'float32' );
+	return benchmark;
+
+	/**
+	* Benchmark function.
+	*
+	* @private
+	* @param {Benchmark} b - benchmark instance
+	*/
+	function benchmark( b ) {
+		var out;
+		var i;
+
+		b.tic();
+		for ( i = 0; i < b.iterations; i++ ) {
+			out = sindexOf( x.length, len+1, x, 1, 0 );
+			if ( out !== out ) {
+				b.fail( 'should return an integer' );
+			}
+		}
+		b.toc();
+		if ( !isInteger( out ) ) {
+			b.fail( 'should return an integer' );
+		}
+		b.pass( 'benchmark finished' );
+		b.end();
+	}
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+	var len;
+	var min;
+	var max;
+	var f;
+	var i;
+
+	min = 1; // 10^min
+	max = 6; // 10^max
+
+	for ( i = min; i <= max; i++ ) {
+		len = pow( 10, i );
+
+		f = createBenchmark( len );
+		bench( pkg+'::native:ndarray:len='+len, opts, f );
+	}
+}
+
+main();

lib/node_modules/@stdlib/blas/ext/base/sindex-of/benchmark/c/benchmark.length.c

@@ -16,7 +16,7 @@
 * limitations under the License.
 */
 
-#include "stdlib/blas/ext/base/sindexof.h"
+#include "stdlib/blas/ext/base/sindex_of.h"
 #include <stdlib.h>
 #include <stdio.h>
 #include <math.h>
@@ -108,7 +108,7 @@ static double benchmark1( int iterations, int len ) {
 	t = tic();
 	for ( i = 0; i < iterations; i++ ) {
 		// cppcheck-suppress uninitvar
-		idx = stdlib_strided_sindexOf( len, 20000.0f, x, 1 );
+		idx = stdlib_strided_sindex_of( len, 20000.0f, x, 1 );
 		if ( idx < -2 ) {
 			printf( "unexpected result\n" );
 			break;
@@ -142,7 +142,7 @@ static double benchmark2( int iterations, int len ) {
 	t = tic();
 	for ( i = 0; i < iterations; i++ ) {
 		// cppcheck-suppress uninitvar
-		idx = stdlib_strided_sindexOf_ndarray( len, 20000.0f, x, 1, 0 );
+		idx = stdlib_strided_sindex_of_ndarray( len, 20000.0f, x, 1, 0 );
 		if ( idx < -2 ) {
 			printf( "unexpected result\n" );
 			break;