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Author: stdlib-bot

CHANGELOG.md

@@ -4,12 +4,13 @@
 
 <section class="release" id="unreleased">
 
-## Unreleased (2026-09-22)
+## Unreleased (2026-09-23)
 
 <section class="features">
 
 ### Features
 
+-   [`2e195f2`](https://github.com/stdlib-js/stdlib/commit/2e195f2882e753e2f467ff5b0049467c70151062) - add float16 dtype support to `ndarray/base/nans` [(#15434)](https://github.com/stdlib-js/stdlib/pull/15434)
 -   [`5f6b7b3`](https://github.com/stdlib-js/stdlib/commit/5f6b7b35889c91d3183477fce13c5e15c6320d92) - add `ndarray/base/kernels/generic/binary-strided1d/blocked` [(#14939)](https://github.com/stdlib-js/stdlib/pull/14939)
 -   [`46f04eb`](https://github.com/stdlib-js/stdlib/commit/46f04ebe040918f014194ef90470f39c866ce712) - add float16 dtype support to `ndarray/ones` [(#15276)](https://github.com/stdlib-js/stdlib/pull/15276)
 -   [`920106e`](https://github.com/stdlib-js/stdlib/commit/920106e17dd93027fac9d9648bc0303c8aabfbb8) - add support for `float16` data type [(#15340)](https://github.com/stdlib-js/stdlib/pull/15340)
@@ -117,6 +118,7 @@ A total of 4 issues were closed in this release:
 
 <details>
 
+-   [`2e195f2`](https://github.com/stdlib-js/stdlib/commit/2e195f2882e753e2f467ff5b0049467c70151062) - **feat:** add float16 dtype support to `ndarray/base/nans` [(#15434)](https://github.com/stdlib-js/stdlib/pull/15434) _(by Samarth Kolarkar)_
 -   [`4e396e9`](https://github.com/stdlib-js/stdlib/commit/4e396e96156bc653142e560ce866c0d0978bdf83) - **chore:** clean-up [(#15425)](https://github.com/stdlib-js/stdlib/pull/15425) _(by Philipp Burckhardt)_
 -   [`5f6b7b3`](https://github.com/stdlib-js/stdlib/commit/5f6b7b35889c91d3183477fce13c5e15c6320d92) - **feat:** add `ndarray/base/kernels/generic/binary-strided1d/blocked` [(#14939)](https://github.com/stdlib-js/stdlib/pull/14939) _(by Kaustubh Patange)_
 -   [`71758bb`](https://github.com/stdlib-js/stdlib/commit/71758bb364a856a954baa9b7661d5d2da6172ea2) - **docs:** fix description [(#15265)](https://github.com/stdlib-js/stdlib/pull/15265) _(by Philipp Burckhardt, Athan Reines)_

base/nans/README.md

@@ -87,6 +87,7 @@ var nans = require( '@stdlib/ndarray/base/nans' );
 var dt = [
     'float64',
     'float32',
+    'float16',
     'complex128',
     'complex64',
     'generic'

base/nans/benchmark/benchmark.js

@@ -65,6 +65,24 @@ bench( format( '%s:dtype=float32', pkg ), function benchmark( b ) {
 	b.end();
 });
 
+bench( format( '%s:dtype=float16', pkg ), function benchmark( b ) {
+	var arr;
+	var i;
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		arr = nans( 'float16', [ 0 ], 'row-major' );
+		if ( arr.length !== 0 ) {
+			b.fail( 'should have length 0' );
+		}
+	}
+	b.toc();
+	if ( !isndarrayLike( arr ) ) {
+		b.fail( 'should return an ndarray' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
+
 bench( format( '%s:dtype=complex128', pkg ), function benchmark( b ) {
 	var arr;
 	var i;

base/nans/benchmark/benchmark.size.float16.js

@@ -0,0 +1,94 @@
+/**
+* @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 format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var nans = require( './../lib' );
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+	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 = nans( 'float16', [ len ], 'row-major' );
+			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();

base/nans/docs/types/index.d.ts

@@ -20,7 +20,7 @@
 
 /// <reference types="@stdlib/types"/>
 
-import { Shape, Order, typedndarray, genericndarray, float64ndarray, float32ndarray, complex128ndarray, complex64ndarray, FloatingPointAndGenericDataType, GenericDataType, Float64DataType, Float32DataType, Complex128DataType, Complex64DataType } from '@stdlib/types/ndarray';
+import { Shape, Order, typedndarray, genericndarray, float64ndarray, float32ndarray, float16ndarray, complex128ndarray, complex64ndarray, FloatingPointAndGenericDataType, GenericDataType, Float64DataType, Float32DataType, Float16DataType, Complex128DataType, Complex64DataType } from '@stdlib/types/ndarray';
 
 /**
 * Creates a NaN-filled ndarray having a specified shape and data type.
@@ -60,6 +60,25 @@ declare function nans( dtype: Float64DataType, shape: Shape, order: Order ): flo
 */
 declare function nans( dtype: Float32DataType, shape: Shape, order: Order ): float32ndarray;
 
+/**
+* Creates a NaN-filled ndarray having a specified shape and data type.
+*
+* @param dtype - underlying data type
+* @param shape - array shape
+* @param order - specifies whether an array is row-major (C-style) or column-major (Fortran-style)
+* @returns NaN-filled ndarray
+*
+* @example
+* var getDType = require( '@stdlib/ndarray/dtype' );
+*
+* var arr = nans( 'float16', [ 2, 2 ], 'row-major' );
+* // returns <ndarray>[ [ NaN, NaN ], [ NaN, NaN ] ]
+*
+* var dt = String( getDType( arr ) );
+* // returns 'float16'
+*/
+declare function nans( dtype: Float16DataType, shape: Shape, order: Order ): float16ndarray;
+
 /**
 * Creates a NaN-filled ndarray having a specified shape and data type.
 *

base/nans/docs/types/test.ts

@@ -25,12 +25,14 @@ import nans = require( './index' );
 {
 	nans( 'float64', [ 2, 2 ], 'row-major' ); // $ExpectType float64ndarray
 	nans( 'float32', [ 2, 2 ], 'row-major' ); // $ExpectType float32ndarray
+	nans( 'float16', [ 2, 2 ], 'row-major' ); // $ExpectType float16ndarray
 	nans( 'complex128', [ 2, 2 ], 'row-major' ); // $ExpectType complex128ndarray
 	nans( 'complex64', [ 2, 2 ], 'row-major' ); // $ExpectType complex64ndarray
 	nans( 'generic', [ 2, 2 ], 'row-major' ); // $ExpectType genericndarray<number>
 
 	nans( 'float64', [ 2, 2 ], 'column-major' ); // $ExpectType float64ndarray
 	nans( 'float32', [ 2, 2 ], 'column-major' ); // $ExpectType float32ndarray
+	nans( 'float16', [ 2, 2 ], 'column-major' ); // $ExpectType float16ndarray
 	nans( 'complex128', [ 2, 2 ], 'column-major' ); // $ExpectType complex128ndarray
 	nans( 'complex64', [ 2, 2 ], 'column-major' ); // $ExpectType complex64ndarray
 	nans( 'generic', [ 2, 2 ], 'column-major' ); // $ExpectType genericndarray<number>

base/nans/examples/index.js

@@ -24,6 +24,7 @@ var nans = require( './../lib' );
 var dt = [
 	'float64',
 	'float32',
+	'float16',
 	'complex128',
 	'complex64',
 	'generic'

base/nans/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 Complex64Array = require( '@stdlib/array/complex64' );
 var Complex128Array = require( '@stdlib/array/complex128' );
 var reinterpret64 = require( '@stdlib/strided/base/reinterpret-complex64' );
@@ -164,6 +165,34 @@ tape( 'the function returns a NaN-filled array (dtype=float32, order=column-majo
 	t.end();
 });
 
+tape( 'the function returns a NaN-filled array (dtype=float16, order=row-major)', function test( t ) {
+	var arr;
+
+	arr = nans( 'float16', [ 2, 2 ], 'row-major' );
+	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( instanceOf( getData( arr ), Float16Array ), true, 'returns expected value' );
+	t.strictEqual( allNaN( getData( arr ) ), 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, order=column-major)', function test( t ) {
+	var arr;
+
+	arr = nans( 'float16', [ 2, 2 ], 'column-major' );
+	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( instanceOf( getData( arr ), Float16Array ), true, 'returns expected value' );
+	t.strictEqual( allNaN( getData( arr ) ), 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, order=row-major)', function test( t ) {
 	var arr;