diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/README.md b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/README.md new file mode 100644 index 000000000000..dad079f97248 --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/README.md @@ -0,0 +1,317 @@ + + +# sindexOfFalsy + +> Return the index of the first falsy element in a single-precision floating-point strided array. + + + +
+ +
+ + + + + +
+ +## Usage + +```javascript +var sindexOfFalsy = require( '@stdlib/blas/ext/base/sindex-of-falsy' ); +``` + +#### sindexOfFalsy( N, x, strideX ) + +Returns the index of the first falsy element in a single-precision floating-point strided array. + +```javascript +var Float32Array = require( '@stdlib/array/float32' ); + +var x = new Float32Array( [ 1.0, 2.0, 0.0, 3.0, 4.0, 5.0, 6.0, 7.0 ] ); + +var idx = sindexOfFalsy( x.length, x, 1 ); +// returns 2 +``` + +The function has the following parameters: + +- **N**: number of indexed elements. +- **x**: input [`Float32Array`][@stdlib/array/float32]. +- **strideX**: stride length. + +If the function is unable to find a falsy element, the function returns `-1`. + +```javascript +var Float32Array = require( '@stdlib/array/float32' ); + +var x = new Float32Array( [ 1.0, 2.0, 3.0, 4.0 ] ); + +var idx = sindexOfFalsy( x.length, x, 1 ); +// returns -1 +``` + +The `N` and stride parameters determine which elements in the strided array are accessed at runtime. For example, to access every other element: + +```javascript +var Float32Array = require( '@stdlib/array/float32' ); + +var x = new Float32Array( [ 1.0, 2.0, 0.0, 3.0, 4.0, 5.0, 6.0, 7.0 ] ); + +var idx = sindexOfFalsy( 4, x, 2 ); +// returns 1 +``` + +Note that indexing is relative to the first index. To introduce an offset, use [`typed array`][mdn-typed-array] views. + +```javascript +var Float32Array = require( '@stdlib/array/float32' ); + +// Initial array... +var x0 = new Float32Array( [ 1.0, 2.0, 3.0, 0.0, 4.0, 5.0 ] ); + +// Create an offset view... +var x1 = new Float32Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element + +// Find index... +var idx = sindexOfFalsy( 3, x1, 2 ); +// returns 1 +``` + +#### sindexOfFalsy.ndarray( N, x, strideX, offsetX ) + +Returns the index of the first falsy element in a single-precision floating-point strided array using alternative indexing semantics. + +```javascript +var Float32Array = require( '@stdlib/array/float32' ); + +var x = new Float32Array( [ 1.0, 2.0, 0.0, 3.0, 4.0, 5.0, 6.0, 7.0 ] ); + +var idx = sindexOfFalsy.ndarray( x.length, x, 1, 0 ); +// returns 2 +``` + +The function has the following additional parameters: + +- **offsetX**: starting index. + +While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameter supports indexing semantics based on a starting index. For example, to access only the last three elements of the strided array: + +```javascript +var Float32Array = require( '@stdlib/array/float32' ); + +var x = new Float32Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 0.0 ] ); + +var idx = sindexOfFalsy.ndarray( 3, x, 1, x.length-3 ); +// returns 2 +``` + +
+ + + + + +
+ +## Notes + +- If the function is unable to find a falsy element, the function returns `-1`. +- Both functions explicitly treat `NaN` values as falsy. + +
+ + + + + +
+ +## Examples + + + +```javascript +var bernoulli = require( '@stdlib/random/array/bernoulli' ); +var sindexOfFalsy = require( '@stdlib/blas/ext/base/sindex-of-falsy' ); + +var x = bernoulli( 10, 0.7, { + 'dtype': 'float32' +}); +console.log( x ); + +var idx = sindexOfFalsy( x.length, x, 1 ); +console.log( idx ); +``` + +
+ + + + + +* * * + +
+ +## C APIs + + + +
+ +
+ + + + + +
+ +### Usage + +```c +#include "stdlib/blas/ext/base/sindex_of_falsy.h" +``` + +#### stdlib_strided_sindex_of_falsy( N, \*X, strideX ) + +Returns the index of the first falsy element in a single-precision floating-point strided array. + +```c +const float x[] = { 1.0f, 2.0f, 0.0f, 3.0f }; + +int idx = stdlib_strided_sindex_of_falsy( 4, x, 1 ); +// returns 2 +``` + +The function accepts the following arguments: + +- **N**: `[in] CBLAS_INT` number of indexed elements. +- **X**: `[in] float*` input array. +- **strideX**: `[in] CBLAS_INT` stride length. + +```c +CBLAS_INT stdlib_strided_sindex_of_falsy( const CBLAS_INT N, const float *X, const CBLAS_INT strideX ); +``` + +#### stdlib_strided_sindex_of_falsy_ndarray( N, \*X, strideX, offsetX ) + +Returns the index of the first falsy element in a single-precision floating-point strided array using alternative indexing semantics. + +```c +const float x[] = { 1.0f, 2.0f, 0.0f, 3.0f }; + +int idx = stdlib_strided_sindex_of_falsy_ndarray( 4, x, 1, 0 ); +// returns 2 +``` + +The function accepts the following arguments: + +- **N**: `[in] CBLAS_INT` number of indexed elements. +- **X**: `[in] float*` input array. +- **strideX**: `[in] CBLAS_INT` stride length. +- **offsetX**: `[in] CBLAS_INT` starting index. + +```c +CBLAS_INT stdlib_strided_sindex_of_falsy_ndarray( const CBLAS_INT N, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX ); +``` + +
+ + + + + +
+ +### Notes + +- Both functions explicitly treat `NaN` values as falsy. + +
+ + + + + +
+ +### Examples + +```c +#include "stdlib/blas/ext/base/sindex_of_falsy.h" +#include + +int main( void ) { + // Create a strided array: + const float x[] = { 1.0f, 2.0f, 0.0f, 3.0f, 4.0f, 5.0f, 6.0f, 7.0f }; + + // Specify the number of indexed elements: + const int N = 8; + + // Specify a stride: + const int strideX = 1; + + // Find the index of the first falsy element: + int idx = stdlib_strided_sindex_of_falsy( N, x, strideX ); + + // Print the result: + printf( "index value: %d\n", idx ); +} +``` + +
+ + + +
+ + + + + +
+ +
+ + + + + +
+ +
+ + + + + +
+ +[@stdlib/array/float32]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/float32 + +[mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray + +
+ + diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/benchmark.js new file mode 100644 index 000000000000..258e3392a5b9 --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/benchmark.js @@ -0,0 +1,97 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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 bench = require( '@stdlib/bench' ); +var pow = require( '@stdlib/math/base/special/pow' ); +var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive; +var ones = require( '@stdlib/array/ones' ); +var format = require( '@stdlib/string/format' ); +var pkg = require( './../package.json' ).name; +var sindexOfFalsy = require( './../lib/sindex_of_falsy.js' ); + + +// FUNCTIONS // + +/** +* Creates a benchmark function. +* +* @private +* @param {PositiveInteger} len - array length +* @returns {Function} benchmark function +*/ +function createBenchmark( len ) { + var x = ones( 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 = sindexOfFalsy( x.length, 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( format( '%s:len=%d', pkg, len ), f ); + } +} + +main(); diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/benchmark.native.js new file mode 100644 index 000000000000..4ec76b7dc40d --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/benchmark.native.js @@ -0,0 +1,106 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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 ones = require( '@stdlib/array/ones' ); +var tryRequire = require( '@stdlib/utils/try-require' ); +var format = require( '@stdlib/string/format' ); +var pkg = require( './../package.json' ).name; + + +// VARIABLES // + +var sindexOfFalsy = tryRequire( resolve( __dirname, './../lib/sindex_of_falsy.native.js' ) ); +var opts = { + 'skip': ( sindexOfFalsy instanceof Error ) +}; + + +// FUNCTIONS // + +/** +* Creates a benchmark function. +* +* @private +* @param {PositiveInteger} len - array length +* @returns {Function} benchmark function +*/ +function createBenchmark( len ) { + var x = ones( 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 = sindexOfFalsy( x.length, 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( format( '%s::native:len=%d', pkg, len ), opts, f ); + } +} + +main(); diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/benchmark.ndarray.js new file mode 100644 index 000000000000..6d3a30356feb --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/benchmark.ndarray.js @@ -0,0 +1,97 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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 bench = require( '@stdlib/bench' ); +var pow = require( '@stdlib/math/base/special/pow' ); +var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive; +var ones = require( '@stdlib/array/ones' ); +var format = require( '@stdlib/string/format' ); +var pkg = require( './../package.json' ).name; +var sindexOfFalsy = require( './../lib/ndarray.js' ); + + +// FUNCTIONS // + +/** +* Creates a benchmark function. +* +* @private +* @param {PositiveInteger} len - array length +* @returns {Function} benchmark function +*/ +function createBenchmark( len ) { + var x = ones( 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 = sindexOfFalsy( x.length, 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( format( '%s:ndarray:len=%d', pkg, len ), f ); + } +} + +main(); diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/benchmark.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/benchmark.ndarray.native.js new file mode 100644 index 000000000000..313f106d2f28 --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/benchmark.ndarray.native.js @@ -0,0 +1,106 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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 ones = require( '@stdlib/array/ones' ); +var tryRequire = require( '@stdlib/utils/try-require' ); +var format = require( '@stdlib/string/format' ); +var pkg = require( './../package.json' ).name; + + +// VARIABLES // + +var sindexOfFalsy = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) ); +var opts = { + 'skip': ( sindexOfFalsy instanceof Error ) +}; + + +// FUNCTIONS // + +/** +* Creates a benchmark function. +* +* @private +* @param {PositiveInteger} len - array length +* @returns {Function} benchmark function +*/ +function createBenchmark( len ) { + var x = ones( 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 = sindexOfFalsy( x.length, 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( format( '%s::native:ndarray:len=%d', pkg, len ), opts, f ); + } +} + +main(); diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/c/Makefile new file mode 100644 index 000000000000..0756dc7da20a --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/c/Makefile @@ -0,0 +1,146 @@ +#/ +# @license Apache-2.0 +# +# Copyright (c) 2026 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. +#/ + +# VARIABLES # + +ifndef VERBOSE + QUIET := @ +else + QUIET := +endif + +# Determine the OS ([1][1], [2][2]). +# +# [1]: https://en.wikipedia.org/wiki/Uname#Examples +# [2]: http://stackoverflow.com/a/27776822/2225624 +OS ?= $(shell uname) +ifneq (, $(findstring MINGW,$(OS))) + OS := WINNT +else +ifneq (, $(findstring MSYS,$(OS))) + OS := WINNT +else +ifneq (, $(findstring CYGWIN,$(OS))) + OS := WINNT +else +ifneq (, $(findstring Windows_NT,$(OS))) + OS := WINNT +endif +endif +endif +endif + +# Define the program used for compiling C source files: +ifdef C_COMPILER + CC := $(C_COMPILER) +else + CC := gcc +endif + +# Define the command-line options when compiling C files: +CFLAGS ?= \ + -std=c99 \ + -O3 \ + -Wall \ + -pedantic + +# Determine whether to generate position independent code ([1][1], [2][2]). +# +# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options +# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option +ifeq ($(OS), WINNT) + fPIC ?= +else + fPIC ?= -fPIC +endif + +# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`): +INCLUDE ?= + +# List of source files: +SOURCE_FILES ?= + +# List of libraries (e.g., `-lopenblas -lpthread`): +LIBRARIES ?= + +# List of library paths (e.g., `-L /foo/bar -L /beep/boop`): +LIBPATH ?= + +# List of C targets: +c_targets := benchmark.length.out + + +# RULES # + +#/ +# Compiles source files. +# +# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`) +# @param {string} [CFLAGS] - C compiler options +# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`) +# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`) +# @param {string} [SOURCE_FILES] - list of source files +# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`) +# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`) +# +# @example +# make +# +# @example +# make all +#/ +all: $(c_targets) + +.PHONY: all + +#/ +# Compiles C source files. +# +# @private +# @param {string} CC - C compiler (e.g., `gcc`) +# @param {string} CFLAGS - C compiler options +# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`) +# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`) +# @param {string} SOURCE_FILES - list of source files +# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`) +# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`) +#/ +$(c_targets): %.out: %.c + $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES) + +#/ +# Runs compiled benchmarks. +# +# @example +# make run +#/ +run: $(c_targets) + $(QUIET) ./$< + +.PHONY: run + +#/ +# Removes generated files. +# +# @example +# make clean +#/ +clean: + $(QUIET) -rm -f *.o *.out + +.PHONY: clean diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/c/benchmark.length.c b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/c/benchmark.length.c new file mode 100644 index 000000000000..688ada6d4248 --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/benchmark/c/benchmark.length.c @@ -0,0 +1,199 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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. +*/ + +#include "stdlib/blas/ext/base/sindex_of_falsy.h" +#include +#include +#include +#include +#include + +#define NAME "sindex_of_falsy" +#define ITERATIONS 10000000 +#define REPEATS 3 +#define MIN 1 +#define MAX 6 + +/** +* Prints the TAP version. +*/ +static void print_version( void ) { + printf( "TAP version 13\n" ); +} + +/** +* Prints the TAP summary. +* +* @param total total number of tests +* @param passing total number of passing tests +*/ +static void print_summary( int total, int passing ) { + printf( "#\n" ); + printf( "1..%d\n", total ); // TAP plan + printf( "# total %d\n", total ); + printf( "# pass %d\n", passing ); + printf( "#\n" ); + printf( "# ok\n" ); +} + +/** +* Prints benchmarks results. +* +* @param iterations number of iterations +* @param elapsed elapsed time in seconds +*/ +static void print_results( int iterations, double elapsed ) { + double rate = (double)iterations / elapsed; + printf( " ---\n" ); + printf( " iterations: %d\n", iterations ); + printf( " elapsed: %0.9f\n", elapsed ); + printf( " rate: %0.9f\n", rate ); + printf( " ...\n" ); +} + +/** +* Returns a clock time. +* +* @return clock time +*/ +static double tic( void ) { + struct timeval now; + gettimeofday( &now, NULL ); + return (double)now.tv_sec + (double)now.tv_usec/1.0e6; +} + +/** +* Generates a random number on the interval [0,1). +* +* @return random number +*/ +static float rand_float( void ) { + int r = rand(); + return (float)r / ( (float)RAND_MAX + 1.0f ); +} + +/** +* Runs a benchmark. +* +* @param iterations number of iterations +* @param len array length +* @return elapsed time in seconds +*/ +static double benchmark1( int iterations, int len ) { + double elapsed; + float *x; + double t; + int idx; + int i; + + x = (float *) malloc( len * sizeof( float ) ); + for ( i = 0; i < len; i++ ) { + x[ i ] = ( rand_float()*99.0f ) + 1.0f; + } + x[ len-1 ] = 0.0f; + idx = -1; + t = tic(); + for ( i = 0; i < iterations; i++ ) { + x[ len-2 ] = (float)( i % 4 ); + idx = stdlib_strided_sindex_of_falsy( len, x, 1 ); + if ( idx < 0 ) { + printf( "unexpected result\n" ); + break; + } + } + elapsed = tic() - t; + if ( idx < 0 ) { + printf( "unexpected result\n" ); + } + free( x ); + return elapsed; +} + +/** +* Runs a benchmark. +* +* @param iterations number of iterations +* @param len array length +* @return elapsed time in seconds +*/ +static double benchmark2( int iterations, int len ) { + double elapsed; + float *x; + double t; + int idx; + int i; + + x = (float *) malloc( len * sizeof( float ) ); + for ( i = 0; i < len; i++ ) { + x[ i ] = ( rand_float()*99.0f ) + 1.0f; + } + x[ len-1 ] = 0.0f; + idx = -1; + t = tic(); + for ( i = 0; i < iterations; i++ ) { + x[ len-2 ] = (float)( i % 4 ); + idx = stdlib_strided_sindex_of_falsy_ndarray( len, x, 1, 0 ); + if ( idx < 0 ) { + printf( "unexpected result\n" ); + break; + } + } + elapsed = tic() - t; + if ( idx < 0 ) { + printf( "unexpected result\n" ); + } + free( x ); + return elapsed; +} + +/** +* Main execution sequence. +*/ +int main( void ) { + double elapsed; + int count; + int iter; + int len; + int i; + int j; + + // Use the current time to seed the random number generator: + srand( time( NULL ) ); + + print_version(); + count = 0; + for ( i = MIN; i <= MAX; i++ ) { + len = pow( 10, i ); + iter = ITERATIONS / pow( 10, i-1 ); + for ( j = 0; j < REPEATS; j++ ) { + count += 1; + printf( "# c::%s:len=%d\n", NAME, len ); + elapsed = benchmark1( iter, len ); + print_results( iter, elapsed ); + printf( "ok %d benchmark finished\n", count ); + } + for ( j = 0; j < REPEATS; j++ ) { + count += 1; + printf( "# c::%s:ndarray:len=%d\n", NAME, len ); + elapsed = benchmark2( iter, len ); + print_results( iter, elapsed ); + printf( "ok %d benchmark finished\n", count ); + } + } + print_summary( count, count ); +} diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/binding.gyp b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/binding.gyp new file mode 100644 index 000000000000..0d6508a12e99 --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/binding.gyp @@ -0,0 +1,170 @@ +# @license Apache-2.0 +# +# Copyright (c) 2026 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. + +# A `.gyp` file for building a Node.js native add-on. +# +# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md +# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md +{ + # List of files to include in this file: + 'includes': [ + './include.gypi', + ], + + # Define variables to be used throughout the configuration for all targets: + 'variables': { + # Target name should match the add-on export name: + 'addon_target_name%': 'addon', + + # Set variables based on the host OS: + 'conditions': [ + [ + 'OS=="win"', + { + # Define the object file suffix: + 'obj': 'obj', + }, + { + # Define the object file suffix: + 'obj': 'o', + } + ], # end condition (OS=="win") + ], # end conditions + }, # end variables + + # Define compile targets: + 'targets': [ + + # Target to generate an add-on: + { + # The target name should match the add-on export name: + 'target_name': '<(addon_target_name)', + + # Define dependencies: + 'dependencies': [], + + # Define directories which contain relevant include headers: + 'include_dirs': [ + # Local include directory: + '<@(include_dirs)', + ], + + # List of source files: + 'sources': [ + '<@(src_files)', + ], + + # Settings which should be applied when a target's object files are used as linker input: + 'link_settings': { + # Define libraries: + 'libraries': [ + '<@(libraries)', + ], + + # Define library directories: + 'library_dirs': [ + '<@(library_dirs)', + ], + }, + + # C/C++ compiler flags: + 'cflags': [ + # Enable commonly used warning options: + '-Wall', + + # Aggressive optimization: + '-O3', + ], + + # C specific compiler flags: + 'cflags_c': [ + # Specify the C standard to which a program is expected to conform: + '-std=c99', + ], + + # C++ specific compiler flags: + 'cflags_cpp': [ + # Specify the C++ standard to which a program is expected to conform: + '-std=c++11', + ], + + # Linker flags: + 'ldflags': [], + + # Apply conditions based on the host OS: + 'conditions': [ + [ + 'OS=="mac"', + { + # Linker flags: + 'ldflags': [ + '-undefined dynamic_lookup', + '-Wl,-no-pie', + '-Wl,-search_paths_first', + ], + }, + ], # end condition (OS=="mac") + [ + 'OS!="win"', + { + # C/C++ flags: + 'cflags': [ + # Generate platform-independent code: + '-fPIC', + ], + }, + ], # end condition (OS!="win") + ], # end conditions + }, # end target <(addon_target_name) + + # Target to copy a generated add-on to a standard location: + { + 'target_name': 'copy_addon', + + # Declare that the output of this target is not linked: + 'type': 'none', + + # Define dependencies: + 'dependencies': [ + # Require that the add-on be generated before building this target: + '<(addon_target_name)', + ], + + # Define a list of actions: + 'actions': [ + { + 'action_name': 'copy_addon', + 'message': 'Copying addon...', + + # Explicitly list the inputs in the command-line invocation below: + 'inputs': [], + + # Declare the expected outputs: + 'outputs': [ + '<(addon_output_dir)/<(addon_target_name).node', + ], + + # Define the command-line invocation: + 'action': [ + 'cp', + '<(PRODUCT_DIR)/<(addon_target_name).node', + '<(addon_output_dir)/<(addon_target_name).node', + ], + }, + ], # end actions + }, # end target copy_addon + ], # end targets +} diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/docs/repl.txt new file mode 100644 index 000000000000..42e69705313b --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/docs/repl.txt @@ -0,0 +1,73 @@ + +{{alias}}( N, x, strideX ) + Returns the index of the first falsy element in a single-precision floating- + point strided array. + + The `N` and stride parameters determine which elements in the strided array + are accessed at runtime. + + Indexing is relative to the first index. To introduce an offset, use a typed + array view. + + If `N <= 0`, the function returns `-1`. + + The function treats `NaN` values as falsy. + + Parameters + ---------- + N: integer + Number of indexed elements. + + x: Float32Array + Input array. + + strideX: integer + Stride length. + + Returns + ------- + idx: integer + Index. + + Examples + -------- + > var x = new {{alias:@stdlib/array/float32}}( [ 1.0, 2.0, 0.0, 3.0, 4.0, 5.0 ] ); + > var idx = {{alias}}( x.length, x, 1 ) + 2 + + +{{alias}}.ndarray( N, x, strideX, offsetX ) + Returns the index of the first falsy element in a single-precision floating- + point strided array using alternative indexing semantics. + + While typed array views mandate a view offset based on the underlying + buffer, the offset parameter supports indexing semantics based on a + starting index. + + Parameters + ---------- + N: integer + Number of indexed elements. + + x: Float32Array + Input array. + + strideX: integer + Stride length. + + offsetX: integer + Starting index. + + Returns + ------- + idx: integer + Index. + + Examples + -------- + > var x = new {{alias:@stdlib/array/float32}}( [ 1.0, 2.0, 0.0, 3.0, 4.0, 5.0 ] ); + > var idx = {{alias}}.ndarray( x.length, x, 1, 0 ) + 2 + + See Also + -------- diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/docs/types/index.d.ts new file mode 100644 index 000000000000..9700e5a2712e --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/docs/types/index.d.ts @@ -0,0 +1,107 @@ +/* +* @license Apache-2.0 +* +* Copyright (c) 2026 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. +*/ + +// TypeScript Version: 4.1 + +/** +* Interface describing `sindexOfFalsy`. +*/ +interface Routine { + /** + * Returns the index of the first falsy element in a single-precision floating-point strided array. + * + * ## Notes + * + * - If unable to find a falsy element, the function returns `-1`. + * - The function explicitly treats `NaN` values as falsy. + * + * @param N - number of indexed elements + * @param x - input array + * @param strideX - stride length + * @returns index + * + * @example + * var Float32Array = require( '@stdlib/array/float32' ); + * + * var x = new Float32Array( [ 1.0, 2.0, 0.0, 3.0 ] ); + * + * var idx = sindexOfFalsy( x.length, x, 1 ); + * // returns 2 + */ + ( N: number, x: Float32Array, strideX: number ): number; + + /** + * Returns the index of the first falsy element in a single-precision floating-point strided array using alternative indexing semantics. + * + * ## Notes + * + * - If unable to find a falsy element, the function returns `-1`. + * - The function explicitly treats `NaN` values as falsy. + * + * @param N - number of indexed elements + * @param x - input array + * @param strideX - stride length + * @param offsetX - starting index + * @returns index + * + * @example + * var Float32Array = require( '@stdlib/array/float32' ); + * + * var x = new Float32Array( [ 1.0, 2.0, 0.0, 3.0 ] ); + * + * var idx = sindexOfFalsy.ndarray( x.length, x, 1, 0 ); + * // returns 2 + */ + ndarray( N: number, x: Float32Array, strideX: number, offsetX: number ): number; +} + +/** +* Returns the index of the first falsy element in a single-precision floating-point strided array. +* +* ## Notes +* +* - If unable to find a falsy element, the function returns `-1`. +* - The function explicitly treats `NaN` values as falsy. +* +* @param N - number of indexed elements +* @param x - input array +* @param strideX - stride length +* @returns index +* +* @example +* var Float32Array = require( '@stdlib/array/float32' ); +* +* var x = new Float32Array( [ 1.0, 2.0, 0.0, 3.0 ] ); +* +* var idx = sindexOfFalsy( x.length, x, 1 ); +* // returns 2 +* +* @example +* var Float32Array = require( '@stdlib/array/float32' ); +* +* var x = new Float32Array( [ 1.0, 2.0, 0.0, 3.0 ] ); +* +* var idx = sindexOfFalsy.ndarray( x.length, x, 1, 0 ); +* // returns 2 +*/ +declare var sindexOfFalsy: Routine; + + +// EXPORTS // + +export = sindexOfFalsy; diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/docs/types/test.ts new file mode 100644 index 000000000000..9990932c766b --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/docs/types/test.ts @@ -0,0 +1,126 @@ +/* +* @license Apache-2.0 +* +* Copyright (c) 2026 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. +*/ + +import sindexOfFalsy = require( './index' ); + + +// TESTS // + +// The function returns a number... +{ + var x = new Float32Array( [ 1.0, 2.0, 3.0 ] ); + + sindexOfFalsy( x.length, x, 1 ); // $ExpectType number +} + +// The compiler throws an error if the function is provided a first argument which is not a number... +{ + var x = new Float32Array( [ 1.0, 2.0, 3.0 ] ); + + sindexOfFalsy( '1', x, 1 ); // $ExpectError + sindexOfFalsy( true, x, 1 ); // $ExpectError + sindexOfFalsy( false, x, 1 ); // $ExpectError + sindexOfFalsy( null, x, 1 ); // $ExpectError + sindexOfFalsy( {}, x, 1 ); // $ExpectError +} + +// The compiler throws an error if the function is provided a second argument which is not a Float32Array... +{ + sindexOfFalsy( x.length, '1', 1 ); // $ExpectError + sindexOfFalsy( x.length, true, 1 ); // $ExpectError + sindexOfFalsy( x.length, false, 1 ); // $ExpectError + sindexOfFalsy( x.length, null, 1 ); // $ExpectError + sindexOfFalsy( x.length, {}, 1 ); // $ExpectError +} + +// The compiler throws an error if the function is provided a third argument which is not a number... +{ + var x = new Float32Array( [ 1.0, 2.0, 3.0 ] ); + + sindexOfFalsy( x.length, x, '1' ); // $ExpectError + sindexOfFalsy( x.length, x, true ); // $ExpectError + sindexOfFalsy( x.length, x, false ); // $ExpectError + sindexOfFalsy( x.length, x, null ); // $ExpectError + sindexOfFalsy( x.length, x, {} ); // $ExpectError +} + +// The compiler throws an error if the function is provided an unsupported number of arguments... +{ + sindexOfFalsy(); // $ExpectError + sindexOfFalsy( 3 ); // $ExpectError + sindexOfFalsy( 3, new Float32Array( [ 1.0, 2.0, 3.0 ] ) ); // $ExpectError + sindexOfFalsy( 3, new Float32Array( [ 1.0, 2.0, 3.0 ] ), 1, {} ); // $ExpectError +} + +// Attached to main export is an `ndarray` method which returns a number... +{ + var x = new Float32Array( [ 1.0, 2.0, 3.0 ] ); + + sindexOfFalsy.ndarray( x.length, x, 1, 0 ); // $ExpectType number +} + +// The compiler throws an error if the `ndarray` method is provided a first argument which is not a number... +{ + var x = new Float32Array( [ 1.0, 2.0, 3.0 ] ); + + sindexOfFalsy.ndarray( '1', x, 1, 1 ); // $ExpectError + sindexOfFalsy.ndarray( true, x, 1, 1 ); // $ExpectError + sindexOfFalsy.ndarray( false, x, 1, 1 ); // $ExpectError + sindexOfFalsy.ndarray( null, x, 1, 1 ); // $ExpectError + sindexOfFalsy.ndarray( {}, x, 1, 1 ); // $ExpectError +} + +// The compiler throws an error if the `ndarray` method is provided a second argument which is not a Float32Array... +{ + sindexOfFalsy.ndarray( x.length, '1', 1, 1 ); // $ExpectError + sindexOfFalsy.ndarray( x.length, true, 1, 1 ); // $ExpectError + sindexOfFalsy.ndarray( x.length, false, 1, 1 ); // $ExpectError + sindexOfFalsy.ndarray( x.length, null, 1, 1 ); // $ExpectError + sindexOfFalsy.ndarray( x.length, {}, 1, 1 ); // $ExpectError +} + +// The compiler throws an error if the `ndarray` method is provided a third argument which is not a number... +{ + var x = new Float32Array( [ 1.0, 2.0, 3.0 ] ); + + sindexOfFalsy.ndarray( x.length, x, '1', 1 ); // $ExpectError + sindexOfFalsy.ndarray( x.length, x, true, 1 ); // $ExpectError + sindexOfFalsy.ndarray( x.length, x, false, 1 ); // $ExpectError + sindexOfFalsy.ndarray( x.length, x, null, 1 ); // $ExpectError + sindexOfFalsy.ndarray( x.length, x, {}, 1 ); // $ExpectError +} + +// The compiler throws an error if the `ndarray` method is provided a fourth argument which is not a number... +{ + var x = new Float32Array( [ 1.0, 2.0, 3.0 ] ); + + sindexOfFalsy.ndarray( x.length, x, 1, '1' ); // $ExpectError + sindexOfFalsy.ndarray( x.length, x, 1, true ); // $ExpectError + sindexOfFalsy.ndarray( x.length, x, 1, false ); // $ExpectError + sindexOfFalsy.ndarray( x.length, x, 1, null ); // $ExpectError + sindexOfFalsy.ndarray( x.length, x, 1, {} ); // $ExpectError +} + +// The compiler throws an error if the `ndarray` method is provided an unsupported number of arguments... +{ + sindexOfFalsy.ndarray(); // $ExpectError + sindexOfFalsy.ndarray( 3 ); // $ExpectError + sindexOfFalsy.ndarray( 3, new Float32Array( [ 1.0, 2.0, 3.0 ] ) ); // $ExpectError + sindexOfFalsy.ndarray( 3, new Float32Array( [ 1.0, 2.0, 3.0 ] ), 1 ); // $ExpectError + sindexOfFalsy.ndarray( 3, new Float32Array( [ 1.0, 2.0, 3.0 ] ), 1, 0, {} ); // $ExpectError +} diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/examples/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/examples/c/Makefile new file mode 100644 index 000000000000..c8f8e9a1517b --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/examples/c/Makefile @@ -0,0 +1,146 @@ +#/ +# @license Apache-2.0 +# +# Copyright (c) 2026 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. +#/ + +# VARIABLES # + +ifndef VERBOSE + QUIET := @ +else + QUIET := +endif + +# Determine the OS ([1][1], [2][2]). +# +# [1]: https://en.wikipedia.org/wiki/Uname#Examples +# [2]: http://stackoverflow.com/a/27776822/2225624 +OS ?= $(shell uname) +ifneq (, $(findstring MINGW,$(OS))) + OS := WINNT +else +ifneq (, $(findstring MSYS,$(OS))) + OS := WINNT +else +ifneq (, $(findstring CYGWIN,$(OS))) + OS := WINNT +else +ifneq (, $(findstring Windows_NT,$(OS))) + OS := WINNT +endif +endif +endif +endif + +# Define the program used for compiling C source files: +ifdef C_COMPILER + CC := $(C_COMPILER) +else + CC := gcc +endif + +# Define the command-line options when compiling C files: +CFLAGS ?= \ + -std=c99 \ + -O3 \ + -Wall \ + -pedantic + +# Determine whether to generate position independent code ([1][1], [2][2]). +# +# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options +# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option +ifeq ($(OS), WINNT) + fPIC ?= +else + fPIC ?= -fPIC +endif + +# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`): +INCLUDE ?= + +# List of source files: +SOURCE_FILES ?= + +# List of libraries (e.g., `-lopenblas -lpthread`): +LIBRARIES ?= + +# List of library paths (e.g., `-L /foo/bar -L /beep/boop`): +LIBPATH ?= + +# List of C targets: +c_targets := example.out + + +# RULES # + +#/ +# Compiles source files. +# +# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`) +# @param {string} [CFLAGS] - C compiler options +# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`) +# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`) +# @param {string} [SOURCE_FILES] - list of source files +# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`) +# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`) +# +# @example +# make +# +# @example +# make all +#/ +all: $(c_targets) + +.PHONY: all + +#/ +# Compiles C source files. +# +# @private +# @param {string} CC - C compiler (e.g., `gcc`) +# @param {string} CFLAGS - C compiler options +# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`) +# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`) +# @param {string} SOURCE_FILES - list of source files +# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`) +# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`) +#/ +$(c_targets): %.out: %.c + $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES) + +#/ +# Runs compiled examples. +# +# @example +# make run +#/ +run: $(c_targets) + $(QUIET) ./$< + +.PHONY: run + +#/ +# Removes generated files. +# +# @example +# make clean +#/ +clean: + $(QUIET) -rm -f *.o *.out + +.PHONY: clean diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/examples/c/example.c b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/examples/c/example.c new file mode 100644 index 000000000000..653faf901e40 --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/examples/c/example.c @@ -0,0 +1,37 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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. +*/ + +#include "stdlib/blas/ext/base/sindex_of_falsy.h" +#include + +int main( void ) { + // Create a strided array: + const float x[] = { 1.0f, 2.0f, 0.0f, 3.0f, 4.0f, 5.0f, 6.0f, 7.0f }; + + // Specify the number of indexed elements: + const int N = 8; + + // Specify a stride: + const int strideX = 1; + + // Find the index of the first falsy element: + int idx = stdlib_strided_sindex_of_falsy( N, x, strideX ); + + // Print the result: + printf( "index value: %d\n", idx ); +} diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/examples/index.js new file mode 100644 index 000000000000..954024039360 --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/examples/index.js @@ -0,0 +1,30 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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'; + +var bernoulli = require( '@stdlib/random/array/bernoulli' ); +var sindexOfFalsy = require( './../lib' ); + +var x = bernoulli( 10, 0.7, { + 'dtype': 'float32' +}); +console.log( x ); + +var idx = sindexOfFalsy( x.length, x, 1 ); +console.log( idx ); diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/include.gypi b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/include.gypi new file mode 100644 index 000000000000..bee8d41a2caf --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/include.gypi @@ -0,0 +1,53 @@ +# @license Apache-2.0 +# +# Copyright (c) 2026 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. + +# A GYP include file for building a Node.js native add-on. +# +# Main documentation: +# +# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md +# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md +{ + # Define variables to be used throughout the configuration for all targets: + 'variables': { + # Source directory: + 'src_dir': './src', + + # Include directories: + 'include_dirs': [ + '=0.10.0", + "npm": ">2.7.0" + }, + "os": [ + "aix", + "darwin", + "freebsd", + "linux", + "macos", + "openbsd", + "sunos", + "win32", + "windows" + ], + "keywords": [ + "stdlib", + "blas", + "find", + "index", + "search", + "falsy", + "array", + "ndarray", + "strided", + "single", + "float", + "float32", + "float32array" + ] +} diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/src/Makefile b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/src/Makefile new file mode 100644 index 000000000000..2caf905cedbe --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/src/Makefile @@ -0,0 +1,70 @@ +#/ +# @license Apache-2.0 +# +# Copyright (c) 2026 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. +#/ + +# VARIABLES # + +ifndef VERBOSE + QUIET := @ +else + QUIET := +endif + +# Determine the OS ([1][1], [2][2]). +# +# [1]: https://en.wikipedia.org/wiki/Uname#Examples +# [2]: http://stackoverflow.com/a/27776822/2225624 +OS ?= $(shell uname) +ifneq (, $(findstring MINGW,$(OS))) + OS := WINNT +else +ifneq (, $(findstring MSYS,$(OS))) + OS := WINNT +else +ifneq (, $(findstring CYGWIN,$(OS))) + OS := WINNT +else +ifneq (, $(findstring Windows_NT,$(OS))) + OS := WINNT +endif +endif +endif +endif + + +# RULES # + +#/ +# Removes generated files for building an add-on. +# +# @example +# make clean-addon +#/ +clean-addon: + $(QUIET) -rm -f *.o *.node + +.PHONY: clean-addon + +#/ +# Removes generated files. +# +# @example +# make clean +#/ +clean: clean-addon + +.PHONY: clean diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/src/addon.c b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/src/addon.c new file mode 100644 index 000000000000..f7bca78e8b70 --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/src/addon.c @@ -0,0 +1,61 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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. +*/ + +#include "stdlib/blas/ext/base/sindex_of_falsy.h" +#include "stdlib/blas/base/shared.h" +#include "stdlib/napi/export.h" +#include "stdlib/napi/argv.h" +#include "stdlib/napi/argv_int64.h" +#include "stdlib/napi/argv_strided_float32array.h" +#include "stdlib/napi/create_int32.h" +#include + +/** +* Receives JavaScript callback invocation data. +* +* @param env environment under which the function is invoked +* @param info callback data +* @return Node-API value +*/ +static napi_value addon( napi_env env, napi_callback_info info ) { + STDLIB_NAPI_ARGV( env, info, argv, argc, 3 ); + STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 ); + STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 2 ); + STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 1 ); + STDLIB_NAPI_CREATE_INT32( env, API_SUFFIX(stdlib_strided_sindex_of_falsy)( N, X, strideX ), idx ); // TODO: Need to revisit in order to support int64_t for CBLAS_INT + return idx; +} + +/** +* Receives JavaScript callback invocation data. +* +* @param env environment under which the function is invoked +* @param info callback data +* @return Node-API value +*/ +static napi_value addon_method( napi_env env, napi_callback_info info ) { + STDLIB_NAPI_ARGV( env, info, argv, argc, 4 ); + STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 ); + STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 2 ); + STDLIB_NAPI_ARGV_INT64( env, offsetX, argv, 3 ); + STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 1 ); + STDLIB_NAPI_CREATE_INT32( env, API_SUFFIX(stdlib_strided_sindex_of_falsy_ndarray)( N, X, strideX, offsetX ), idx ); // TODO: Need to revisit in order to support int64_t for CBLAS_INT + return idx; +} + +STDLIB_NAPI_MODULE_EXPORT_FCN_WITH_METHOD( addon, "ndarray", addon_method ); diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/src/main.c b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/src/main.c new file mode 100644 index 000000000000..8ea6aa4e0911 --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/src/main.c @@ -0,0 +1,63 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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. +*/ + +#include "stdlib/blas/ext/base/sindex_of_falsy.h" +#include "stdlib/math/base/assert/is_nanf.h" +#include "stdlib/strided/base/stride2offset.h" +#include "stdlib/blas/base/shared.h" + +/** +* Returns the index of the first falsy element in a single-precision floating-point strided array. +* +* @param N number of indexed elements +* @param X input array +* @param strideX stride length +* @return index +*/ +CBLAS_INT API_SUFFIX(stdlib_strided_sindex_of_falsy)( const CBLAS_INT N, const float *X, const CBLAS_INT strideX ) { + CBLAS_INT ox = stdlib_strided_stride2offset( N, strideX ); + return API_SUFFIX(stdlib_strided_sindex_of_falsy_ndarray)( N, X, strideX, ox ); +} + +/** +* Returns the index of the first falsy element in a single-precision floating-point strided array using alternative indexing semantics. +* +* @param N number of indexed elements +* @param X input array +* @param strideX stride length +* @param offsetX starting index +* @return index +*/ +CBLAS_INT API_SUFFIX(stdlib_strided_sindex_of_falsy_ndarray)( const CBLAS_INT N, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX ) { + CBLAS_INT ix; + CBLAS_INT i; + float v; + + if ( N <= 0 ) { + return -1; + } + ix = offsetX; + for ( i = 0; i < N; i++ ) { + v = X[ ix ]; + if ( v == 0.0f || stdlib_base_is_nanf( v ) ) { + return i; + } + ix += strideX; + } + return -1; +} diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/test/test.js b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/test/test.js new file mode 100644 index 000000000000..7555779fbab3 --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/test/test.js @@ -0,0 +1,82 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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 tape = require( 'tape' ); +var proxyquire = require( 'proxyquire' ); +var IS_BROWSER = require( '@stdlib/assert/is-browser' ); +var sindexOfFalsy = require( './../lib' ); + + +// VARIABLES // + +var opts = { + 'skip': IS_BROWSER +}; + + +// TESTS // + +tape( 'main export is a function', function test( t ) { + t.ok( true, __filename ); + t.strictEqual( typeof sindexOfFalsy, 'function', 'main export is a function' ); + t.end(); +}); + +tape( 'attached to the main export is a method providing an ndarray interface', function test( t ) { + t.strictEqual( typeof sindexOfFalsy.ndarray, 'function', 'method is a function' ); + t.end(); +}); + +tape( 'if a native implementation is available, the main export is the native implementation', opts, function test( t ) { + var sindexOfFalsy = proxyquire( './../lib', { + '@stdlib/utils/try-require': tryRequire + }); + + t.strictEqual( sindexOfFalsy, mock, 'returns expected value' ); + t.end(); + + function tryRequire() { + return mock; + } + + function mock() { + // Mock... + } +}); + +tape( 'if a native implementation is not available, the main export is a JavaScript implementation', opts, function test( t ) { + var sindexOfFalsy; + var main; + + main = require( './../lib/sindex_of_falsy.js' ); + + sindexOfFalsy = proxyquire( './../lib', { + '@stdlib/utils/try-require': tryRequire + }); + + t.strictEqual( sindexOfFalsy, main, 'returns expected value' ); + t.end(); + + function tryRequire() { + return new Error( 'Cannot find module' ); + } +}); diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/test/test.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/test/test.ndarray.js new file mode 100644 index 000000000000..71755abf427d --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/test/test.ndarray.js @@ -0,0 +1,102 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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 tape = require( 'tape' ); +var Float32Array = require( '@stdlib/array/float32' ); +var sindexOfFalsy = require( './../lib/ndarray.js' ); + + +// TESTS // + +tape( 'main export is a function', function test( t ) { + t.ok( true, __filename ); + t.strictEqual( typeof sindexOfFalsy, 'function', 'main export is a function' ); + t.end(); +}); + +tape( 'the function returns the index of the first falsy element', function test( t ) { + var actual; + var x; + + x = new Float32Array( [ 1.0, 0.0, 1.0, 2.0, 0.0, 1.0 ] ); + + // Nonnegative stride... + actual = sindexOfFalsy( x.length, x, 1, 0 ); + t.strictEqual( actual, 1, 'returns expected value' ); + + actual = sindexOfFalsy( x.length-1, x, 1, 1 ); + t.strictEqual( actual, 0, 'returns expected value' ); + + actual = sindexOfFalsy( x.length-2, x, 1, 2 ); + t.strictEqual( actual, 2, 'returns expected value' ); + + actual = sindexOfFalsy( 1, x, 1, 0 ); + t.strictEqual( actual, -1, 'returns expected value' ); + + // Negative stride... + actual = sindexOfFalsy( x.length, x, -1, x.length-1 ); + t.strictEqual( actual, 1, 'returns expected value' ); + + actual = sindexOfFalsy( 3, x, -2, x.length-1 ); + t.strictEqual( actual, 2, 'returns expected value' ); + + actual = sindexOfFalsy( 3, x, -2, x.length-2 ); + t.strictEqual( actual, 0, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function treats `NaN` values as falsy', function test( t ) { + var actual; + var x; + + x = new Float32Array( [ 2.0, 3.0, NaN, 1.0 ] ); + + actual = sindexOfFalsy( x.length, x, 1, 0 ); + t.strictEqual( actual, 2, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function returns `-1` if unable to find a falsy element', function test( t ) { + var actual; + var x; + + x = new Float32Array( [ 1.0, 2.0, 3.0, 4.0 ] ); + + actual = sindexOfFalsy( x.length, x, 1, 0 ); + t.strictEqual( actual, -1, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function returns `-1` if provided an `N` parameter which is less than or equal to zero', function test( t ) { + var actual; + + actual = sindexOfFalsy( 0, new Float32Array( [ 0.0, 1.0, 2.0 ] ), 1, 0 ); + t.strictEqual( actual, -1, 'returns expected value' ); + + actual = sindexOfFalsy( -1, new Float32Array( [ 0.0, 1.0, 2.0 ] ), 1, 0 ); + t.strictEqual( actual, -1, 'returns expected value' ); + + t.end(); +}); diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/test/test.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/test/test.ndarray.native.js new file mode 100644 index 000000000000..783ace309f01 --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/test/test.ndarray.native.js @@ -0,0 +1,111 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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 tape = require( 'tape' ); +var Float32Array = require( '@stdlib/array/float32' ); +var tryRequire = require( '@stdlib/utils/try-require' ); + + +// VARIABLES // + +var sindexOfFalsy = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) ); +var opts = { + 'skip': ( sindexOfFalsy instanceof Error ) +}; + + +// TESTS // + +tape( 'main export is a function', opts, function test( t ) { + t.ok( true, __filename ); + t.strictEqual( typeof sindexOfFalsy, 'function', 'main export is a function' ); + t.end(); +}); + +tape( 'the function returns the index of the first falsy element', opts, function test( t ) { + var actual; + var x; + + x = new Float32Array( [ 1.0, 0.0, 1.0, 2.0, 0.0, 1.0 ] ); + + // Nonnegative stride... + actual = sindexOfFalsy( x.length, x, 1, 0 ); + t.strictEqual( actual, 1, 'returns expected value' ); + + actual = sindexOfFalsy( x.length-1, x, 1, 1 ); + t.strictEqual( actual, 0, 'returns expected value' ); + + actual = sindexOfFalsy( x.length-2, x, 1, 2 ); + t.strictEqual( actual, 2, 'returns expected value' ); + + actual = sindexOfFalsy( 1, x, 1, 0 ); + t.strictEqual( actual, -1, 'returns expected value' ); + + // Negative stride... + actual = sindexOfFalsy( x.length, x, -1, x.length-1 ); + t.strictEqual( actual, 1, 'returns expected value' ); + + actual = sindexOfFalsy( 3, x, -2, x.length-1 ); + t.strictEqual( actual, 2, 'returns expected value' ); + + actual = sindexOfFalsy( 3, x, -2, x.length-2 ); + t.strictEqual( actual, 0, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function treats `NaN` values as falsy', opts, function test( t ) { + var actual; + var x; + + x = new Float32Array( [ 2.0, 3.0, NaN, 1.0 ] ); + + actual = sindexOfFalsy( x.length, x, 1, 0 ); + t.strictEqual( actual, 2, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function returns `-1` if unable to find a falsy element', opts, function test( t ) { + var actual; + var x; + + x = new Float32Array( [ 1.0, 2.0, 3.0, 4.0 ] ); + + actual = sindexOfFalsy( x.length, x, 1, 0 ); + t.strictEqual( actual, -1, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function returns `-1` if provided an `N` parameter which is less than or equal to zero', opts, function test( t ) { + var actual; + + actual = sindexOfFalsy( 0, new Float32Array( [ 0.0, 1.0, 2.0 ] ), 1, 0 ); + t.strictEqual( actual, -1, 'returns expected value' ); + + actual = sindexOfFalsy( -1, new Float32Array( [ 0.0, 1.0, 2.0 ] ), 1, 0 ); + t.strictEqual( actual, -1, 'returns expected value' ); + + t.end(); +}); diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/test/test.sindex_of_falsy.js b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/test/test.sindex_of_falsy.js new file mode 100644 index 000000000000..97766e4b5b49 --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/test/test.sindex_of_falsy.js @@ -0,0 +1,93 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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 tape = require( 'tape' ); +var Float32Array = require( '@stdlib/array/float32' ); +var sindexOfFalsy = require( './../lib/sindex_of_falsy.js' ); + + +// TESTS // + +tape( 'main export is a function', function test( t ) { + t.ok( true, __filename ); + t.strictEqual( typeof sindexOfFalsy, 'function', 'main export is a function' ); + t.end(); +}); + +tape( 'the function returns the index of the first falsy element', function test( t ) { + var actual; + var x; + + x = new Float32Array( [ 1.0, 0.0, 1.0, 2.0, 0.0, 1.0 ] ); + + // Nonnegative stride... + actual = sindexOfFalsy( x.length, x, 1 ); + t.strictEqual( actual, 1, 'returns expected value' ); + + actual = sindexOfFalsy( 3, x, 2 ); + t.strictEqual( actual, 2, 'returns expected value' ); + + // Negative stride... + actual = sindexOfFalsy( x.length, x, -1 ); + t.strictEqual( actual, 1, 'returns expected value' ); + + actual = sindexOfFalsy( 3, x, -2 ); + t.strictEqual( actual, 0, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function treats `NaN` values as falsy', function test( t ) { + var actual; + var x; + + x = new Float32Array( [ 2.0, 3.0, NaN, 1.0 ] ); + + actual = sindexOfFalsy( x.length, x, 1 ); + t.strictEqual( actual, 2, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function returns `-1` if unable to find a falsy element', function test( t ) { + var actual; + var x; + + x = new Float32Array( [ 1.0, 2.0, 3.0, 4.0 ] ); + + actual = sindexOfFalsy( x.length, x, 1 ); + t.strictEqual( actual, -1, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function returns `-1` if provided an `N` parameter which is less than or equal to zero', function test( t ) { + var actual; + + actual = sindexOfFalsy( 0, new Float32Array( [ 0.0, 1.0, 2.0 ] ), 1 ); + t.strictEqual( actual, -1, 'returns expected value' ); + + actual = sindexOfFalsy( -1, new Float32Array( [ 0.0, 1.0, 2.0 ] ), 1 ); + t.strictEqual( actual, -1, 'returns expected value' ); + + t.end(); +}); diff --git a/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/test/test.sindex_of_falsy.native.js b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/test/test.sindex_of_falsy.native.js new file mode 100644 index 000000000000..ffc8475b8c71 --- /dev/null +++ b/lib/node_modules/@stdlib/blas/ext/base/sindex-of-falsy/test/test.sindex_of_falsy.native.js @@ -0,0 +1,102 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 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 tape = require( 'tape' ); +var Float32Array = require( '@stdlib/array/float32' ); +var tryRequire = require( '@stdlib/utils/try-require' ); + + +// VARIABLES // + +var sindexOfFalsy = tryRequire( resolve( __dirname, './../lib/sindex_of_falsy.native.js' ) ); +var opts = { + 'skip': ( sindexOfFalsy instanceof Error ) +}; + + +// TESTS // + +tape( 'main export is a function', opts, function test( t ) { + t.ok( true, __filename ); + t.strictEqual( typeof sindexOfFalsy, 'function', 'main export is a function' ); + t.end(); +}); + +tape( 'the function returns the index of the first falsy element', opts, function test( t ) { + var actual; + var x; + + x = new Float32Array( [ 1.0, 0.0, 1.0, 2.0, 0.0, 1.0 ] ); + + // Nonnegative stride... + actual = sindexOfFalsy( x.length, x, 1 ); + t.strictEqual( actual, 1, 'returns expected value' ); + + actual = sindexOfFalsy( 3, x, 2 ); + t.strictEqual( actual, 2, 'returns expected value' ); + + // Negative stride... + actual = sindexOfFalsy( x.length, x, -1 ); + t.strictEqual( actual, 1, 'returns expected value' ); + + actual = sindexOfFalsy( 3, x, -2 ); + t.strictEqual( actual, 0, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function treats `NaN` values as falsy', opts, function test( t ) { + var actual; + var x; + + x = new Float32Array( [ 2.0, 3.0, NaN, 1.0 ] ); + + actual = sindexOfFalsy( x.length, x, 1 ); + t.strictEqual( actual, 2, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function returns `-1` if unable to find a falsy element', opts, function test( t ) { + var actual; + var x; + + x = new Float32Array( [ 1.0, 2.0, 3.0, 4.0 ] ); + + actual = sindexOfFalsy( x.length, x, 1 ); + t.strictEqual( actual, -1, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function returns `-1` if provided an `N` parameter which is less than or equal to zero', opts, function test( t ) { + var actual; + + actual = sindexOfFalsy( 0, new Float32Array( [ 0.0, 1.0, 2.0 ] ), 1 ); + t.strictEqual( actual, -1, 'returns expected value' ); + + actual = sindexOfFalsy( -1, new Float32Array( [ 0.0, 1.0, 2.0 ] ), 1 ); + t.strictEqual( actual, -1, 'returns expected value' ); + + t.end(); +});