feat: add float16 dtype support to ndarray/base/nans-like

lib/node_modules/@stdlib/ndarray/base/nans-like/README.md

@@ -91,6 +91,7 @@ var nansLike = require( '@stdlib/ndarray/base/nans-like' );
 var dt = [
     'float64',
     'float32',
+    'float16',
     'complex128',
     'complex64',
     'generic'

lib/node_modules/@stdlib/ndarray/base/nans-like/benchmark/benchmark.js

@@ -74,6 +74,28 @@ bench( format( '%s:dtype=float32', pkg ), function benchmark( b ) {
 	b.end();
 });
 
+bench( format( '%s:dtype=float16', pkg ), function benchmark( b ) {
+	var x;
+	var y;
+	var i;
+
+	x = ones( 'float16', [ 0 ], 'row-major' );
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		y = nansLike( x );
+		if ( y.length !== 0 ) {
+			b.fail( 'should have length 0' );
+		}
+	}
+	b.toc();
+	if ( !isndarrayLike( y ) ) {
+		b.fail( 'should return an ndarray' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
+
 bench( format( '%s:dtype=complex128', pkg ), function benchmark( b ) {
 	var x;
 	var y;

lib/node_modules/@stdlib/ndarray/base/nans-like/benchmark/benchmark.size.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 isndarrayLike = require( '@stdlib/assert/is-ndarray-like' );
+var ones = require( '@stdlib/ndarray/base/ones' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var nansLike = require( './../lib' );
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+	var x = ones( 'float16', [ len ], 'row-major' );
+	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 = nansLike( x );
+			if ( arr.length !== len ) {
+				b.fail( 'unexpected length' );
+			}
+		}
+		b.toc();
+		if ( !isndarrayLike( arr ) ) {
+			b.fail( 'should return an ndarray' );
+		}
+		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,size=%d', pkg, len ), f );
+	}
+}
+
+main();

lib/node_modules/@stdlib/ndarray/base/nans-like/docs/types/test.ts

@@ -29,6 +29,7 @@ import nansLike = require( './index' );
 
 	nansLike( ones( 'float64', sh, ord ) ); // $ExpectType float64ndarray
 	nansLike( ones( 'float32', sh, ord ) ); // $ExpectType float32ndarray
+	nansLike( ones( 'float16', sh, ord ) ); // $ExpectType float16ndarray
 	nansLike( ones( 'complex128', sh, ord ) ); // $ExpectType complex128ndarray
 	nansLike( ones( 'complex64', sh, ord ) ); // $ExpectType complex64ndarray
 	nansLike( ones( 'generic', sh, ord ) ); // $ExpectType genericndarray<number>

lib/node_modules/@stdlib/ndarray/base/nans-like/examples/index.js

@@ -26,6 +26,7 @@ var nansLike = require( './../lib' );
 var dt = [
 	'float64',
 	'float32',
+	'float16',
 	'complex128',
 	'complex64',
 	'generic'

lib/node_modules/@stdlib/ndarray/base/nans-like/test/test.js

@@ -27,9 +27,11 @@ var isSameComplex128Array = require( '@stdlib/assert/is-same-complex128array' );
 var isSameComplex64Array = require( '@stdlib/assert/is-same-complex64array' );
 var isSameFloat64Array = require( '@stdlib/assert/is-same-float64array' );
 var isSameFloat32Array = require( '@stdlib/assert/is-same-float32array' );
+var isSameFloat16Array = require( '@stdlib/assert/is-same-float16array' );
 var isSameArray = require( '@stdlib/assert/is-same-array' );
 var Float64Array = require( '@stdlib/array/float64' );
 var Float32Array = require( '@stdlib/array/float32' );
+var Float16Array = require( '@stdlib/array/float16' );
 var Complex64Array = require( '@stdlib/array/complex64' );
 var Complex128Array = require( '@stdlib/array/complex128' );
 var instanceOf = require( '@stdlib/assert/instance-of' );
@@ -172,6 +174,48 @@ tape( 'the function returns a NaN-filled array (dtype=float32, non-base)', funct
 	t.end();
 });
 
+tape( 'the function returns a NaN-filled array (dtype=float16, base)', function test( t ) {
+	var expected;
+	var arr;
+	var x;
+
+	expected = new Float16Array( [ NaN, NaN, NaN, NaN ] );
+
+	x = ones( 'float16', [ 2, 2 ], 'row-major' );
+	arr = nansLike( x );
+
+	t.strictEqual( instanceOf( arr, base ), true, 'returns expected value' );
+	t.strictEqual( String( getDType( arr ) ), 'float16', 'returns expected value' );
+	t.deepEqual( getShape( arr ), [ 2, 2 ], 'returns expected value' );
+	t.strictEqual( isSameFloat16Array( getData( arr ), expected ), true, 'returns expected value' );
+	t.strictEqual( getOrder( arr ), 'row-major', 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function returns a NaN-filled array (dtype=float16, non-base)', function test( t ) {
+	var expected;
+	var arr;
+	var x;
+
+	expected = new Float16Array( [ NaN, NaN, NaN, NaN ] );
+
+	x = array( new Float16Array( 4 ), {
+		'shape': [ 2, 2 ],
+		'dtype': 'float16',
+		'order': 'column-major'
+	});
+	arr = nansLike( x );
+
+	t.strictEqual( instanceOf( arr, ndarray ), true, 'returns expected value' );
+	t.strictEqual( String( getDType( arr ) ), 'float16', 'returns expected value' );
+	t.deepEqual( getShape( arr ), [ 2, 2 ], 'returns expected value' );
+	t.strictEqual( isSameFloat16Array( getData( arr ), expected ), true, 'returns expected value' );
+	t.strictEqual( getOrder( arr ), 'column-major', 'returns expected value' );
+
+	t.end();
+});
+
 tape( 'the function returns a NaN-filled array (dtype=complex128, base)', function test( t ) {
 	var expected;
 	var arr;