From 7faa161f47591eae74d22f15a5be2df570aecff0 Mon Sep 17 00:00:00 2001 From: Samarth Kolarkar Date: Wed, 12 Aug 2026 12:09:36 +0530 Subject: [PATCH] feat: add float16 dtype support to array/empty-like --- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown_pkg_readmes status: na - task: lint_markdown_docs status: na - task: lint_markdown status: na - task: lint_package_json status: passed - task: lint_repl_help status: na - task: lint_javascript_src status: na - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: passed - task: lint_javascript_benchmarks status: passed - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: na - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: passed - task: lint_license_headers status: passed --- --- .../array/empty-like/benchmark/benchmark.js | 22 +++++ .../benchmark/benchmark.length.float16.js | 96 +++++++++++++++++++ .../array/empty-like/docs/types/index.d.ts | 9 ++ .../array/empty-like/docs/types/test.ts | 3 + .../@stdlib/array/empty-like/package.json | 4 + .../@stdlib/array/empty-like/test/test.js | 27 ++++++ 6 files changed, 161 insertions(+) create mode 100644 lib/node_modules/@stdlib/array/empty-like/benchmark/benchmark.length.float16.js diff --git a/lib/node_modules/@stdlib/array/empty-like/benchmark/benchmark.js b/lib/node_modules/@stdlib/array/empty-like/benchmark/benchmark.js index a1c06e968a5a..c251ad9d405d 100644 --- a/lib/node_modules/@stdlib/array/empty-like/benchmark/benchmark.js +++ b/lib/node_modules/@stdlib/array/empty-like/benchmark/benchmark.js @@ -97,6 +97,28 @@ bench( format( '%s:dtype=%s', pkg, 'float32' ), function benchmark( b ) { b.end(); }); +bench( format( '%s:dtype=%s', pkg, 'float16' ), function benchmark( b ) { + var arr; + var x; + var i; + + x = empty( 0, 'float16' ); + + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + arr = emptyLike( x ); + if ( arr.length !== 0 ) { + b.fail( 'should have length 0' ); + } + } + b.toc(); + if ( !isTypedArrayLike( arr ) ) { + b.fail( 'should return a typed array' ); + } + b.pass( 'benchmark finished' ); + b.end(); +}); + bench( format( '%s:dtype=%s', pkg, 'bool' ), function benchmark( b ) { var arr; var x; diff --git a/lib/node_modules/@stdlib/array/empty-like/benchmark/benchmark.length.float16.js b/lib/node_modules/@stdlib/array/empty-like/benchmark/benchmark.length.float16.js new file mode 100644 index 000000000000..3bf5296942e6 --- /dev/null +++ b/lib/node_modules/@stdlib/array/empty-like/benchmark/benchmark.length.float16.js @@ -0,0 +1,96 @@ +/** +* @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 isTypedArray = require( '@stdlib/assert/is-typed-array' ); +var empty = require( '@stdlib/array/empty' ); +var format = require( '@stdlib/string/format' ); +var pkg = require( './../package.json' ).name; +var emptyLike = require( './../lib' ); + + +// FUNCTIONS // + +/** +* Creates a benchmark function. +* +* @private +* @param {PositiveInteger} len - array length +* @returns {Function} benchmark function +*/ +function createBenchmark( len ) { + var x = empty( len, 'float16' ); + return benchmark; + + /** + * Benchmark function. + * + * @private + * @param {Benchmark} b - benchmark instance + */ + function benchmark( b ) { + var arr; + var i; + + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + arr = emptyLike( x ); + if ( arr.length !== len ) { + b.fail( 'unexpected length' ); + } + } + b.toc(); + if ( !isTypedArray( arr ) ) { + b.fail( 'should return a typed array' ); + } + 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:dtype=float16,len=%d', pkg, len ), f ); + } +} + +main(); diff --git a/lib/node_modules/@stdlib/array/empty-like/docs/types/index.d.ts b/lib/node_modules/@stdlib/array/empty-like/docs/types/index.d.ts index 73d26fc5f219..b998c6a89993 100644 --- a/lib/node_modules/@stdlib/array/empty-like/docs/types/index.d.ts +++ b/lib/node_modules/@stdlib/array/empty-like/docs/types/index.d.ts @@ -63,6 +63,15 @@ declare function emptyLike( x: Array ): Array; * * var arr = emptyLike( x ); * // returns +* +* @example +* var zeros = require( '@stdlib/array/zeros' ); +* +* var x = zeros( 2, 'float16' ); +* // returns [ 0.0, 0.0 ] +* +* var arr = emptyLike( x ); +* // returns */ declare function emptyLike( x: T ): T; diff --git a/lib/node_modules/@stdlib/array/empty-like/docs/types/test.ts b/lib/node_modules/@stdlib/array/empty-like/docs/types/test.ts index 12819ef9e4a9..75fa24d664a0 100644 --- a/lib/node_modules/@stdlib/array/empty-like/docs/types/test.ts +++ b/lib/node_modules/@stdlib/array/empty-like/docs/types/test.ts @@ -18,6 +18,7 @@ import Complex128Array = require( '@stdlib/array/complex128' ); import Complex64Array = require( '@stdlib/array/complex64' ); +import Float16Array = require( '@stdlib/array/float16' ); import BooleanArray = require( '@stdlib/array/bool' ); import emptyLike = require( './index' ); @@ -29,6 +30,7 @@ import emptyLike = require( './index' ); emptyLike( [ 0, 0 ] ); // $ExpectType number[] emptyLike( new Float64Array( [ 0, 0 ] ) ); // $ExpectType Float64Array emptyLike( new Float32Array( [ 0, 0 ] ) ); // $ExpectType Float32Array + emptyLike( new Float16Array( [ 0, 0 ] ) ); // $ExpectType Float16Array emptyLike( new Complex128Array( [ 0, 0 ] ) ); // $ExpectType Complex128Array emptyLike( new Complex128Array( [ 0, 0 ] ) ); // $ExpectType Complex128Array emptyLike( new Complex64Array( [ 0, 0 ] ) ); // $ExpectType Complex64Array @@ -45,6 +47,7 @@ import emptyLike = require( './index' ); emptyLike( [ 0, 0 ], 'float64' ); // $ExpectType Float64Array emptyLike( [ 0, 0 ], 'float32' ); // $ExpectType Float32Array + emptyLike( [ 0, 0 ], 'float16' ); // $ExpectType Float16ArrayFallback emptyLike( [ 0, 0 ], 'complex128' ); // $ExpectType Complex128Array emptyLike( [ 0, 0 ], 'complex128' ); // $ExpectType Complex128Array emptyLike( [ 0, 0 ], 'complex64' ); // $ExpectType Complex64Array diff --git a/lib/node_modules/@stdlib/array/empty-like/package.json b/lib/node_modules/@stdlib/array/empty-like/package.json index d4e5f23b013c..bc0d69896e2d 100644 --- a/lib/node_modules/@stdlib/array/empty-like/package.json +++ b/lib/node_modules/@stdlib/array/empty-like/package.json @@ -63,6 +63,7 @@ "matrix", "float64array", "float32array", + "float16array", "int32array", "uint32array", "int16array", @@ -85,6 +86,9 @@ "float", "single-precision", "float32", + "half", + "half-precision", + "float16", "ieee754", "integer", "int32", diff --git a/lib/node_modules/@stdlib/array/empty-like/test/test.js b/lib/node_modules/@stdlib/array/empty-like/test/test.js index 02c12788aa24..ce8419468649 100644 --- a/lib/node_modules/@stdlib/array/empty-like/test/test.js +++ b/lib/node_modules/@stdlib/array/empty-like/test/test.js @@ -23,6 +23,7 @@ var tape = require( 'tape' ); var Float64Array = require( '@stdlib/array/float64' ); var Float32Array = require( '@stdlib/array/float32' ); +var Float16Array = require( '@stdlib/array/float16' ); var Int32Array = require( '@stdlib/array/int32' ); var Uint32Array = require( '@stdlib/array/uint32' ); var Int16Array = require( '@stdlib/array/int16' ); @@ -190,6 +191,32 @@ tape( 'the function returns an empty array (dtype=float32)', function test( t ) t.end(); }); +tape( 'the function returns an empty array (float16)', function test( t ) { + var arr; + var x; + + x = new Float16Array( 5 ); + + arr = emptyLike( x ); + t.strictEqual( instanceOf( arr, Float16Array ), true, 'returns expected value' ); + t.strictEqual( arr.length, x.length, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function returns an empty array (dtype=float16)', function test( t ) { + var arr; + var x; + + x = new Float64Array( 5 ); + + arr = emptyLike( x, 'float16' ); + t.strictEqual( instanceOf( arr, Float16Array ), true, 'returns expected value' ); + t.strictEqual( arr.length, x.length, 'returns expected value' ); + + t.end(); +}); + tape( 'the function returns an empty array (bool)', function test( t ) { var arr; var x;