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107 changes: 107 additions & 0 deletions lib/node_modules/@stdlib/blas/ext/base/ndarray/gfill/README.md
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<!--

@license Apache-2.0

Copyright (c) 2025 The Stdlib Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

-->

# gfill

> Fill a one-dimensional ndarray with a specified value.

<section class="usage">

## Usage

```javascript
var gfill = require( '@stdlib/blas/ext/base/ndarray/gfill' );
```

#### gfill( x, alpha )

Fills a one-dimensional ndarray with a specified value.

```javascript
var ndarray = require( '@stdlib/ndarray/base/ctor' );

var xbuf = [ 1.0, 2.0, 3.0, 4.0 ];
var x = new ndarray( 'generic', xbuf, [ 4 ], [ 1 ], 0, 'row-major' );

gfill( x, 5.0 );
// xbuf => [ 5.0, 5.0, 5.0, 5.0 ]
```

The function has the following parameters:

- **x**: input ndarray.
- **alpha**: fill value.

</section>

<!-- /.usage -->

<section class="notes">

## Notes

- The function modifies the input ndarray in-place.
- The function supports ndarrays having non-unit strides and non-zero offsets.

</section>

<!-- /.notes -->

<section class="examples">

## Examples

<!-- eslint no-undef: "error" -->

```javascript
var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
var ndarray = require( '@stdlib/ndarray/base/ctor' );
var ndarray2array = require( '@stdlib/ndarray/to-array' );
var gfill = require( '@stdlib/blas/ext/base/ndarray/gfill' );

var xbuf = discreteUniform( 10, -50, 50, {
'dtype': 'generic'
});
var x = new ndarray( 'generic', xbuf, [ xbuf.length ], [ 1 ], 0, 'row-major' );
console.log( ndarray2array( x ) );

gfill( x, 5.0 );
console.log( ndarray2array( x ) );
```

</section>

<!-- /.examples -->

<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->

<section class="related">

</section>

<!-- /.related -->

<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="links">

</section>

<!-- /.links -->
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/**
* @license Apache-2.0
*
* Copyright (c) 2025 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

'use strict';

// MODULES //

var bench = require( '@stdlib/bench' );
var uniform = require( '@stdlib/random/array/uniform' );
var pow = require( '@stdlib/math/base/special/pow' );
var ndarray = require( '@stdlib/ndarray/base/ctor' );
var pkg = require( './../package.json' ).name;
var gfill = require( './../lib' );


// VARIABLES //

var options = {
'dtype': 'generic'
};


// FUNCTIONS //

/**
* Creates a benchmark function.
*
* @private
* @param {PositiveInteger} len - array length
* @returns {Function} benchmark function
*/
function createBenchmark( len ) {
var xbuf;
var x;

xbuf = uniform( len, -10.0, 10.0, options );
x = new ndarray( options.dtype, xbuf, [ len ], [ 1 ], 0, 'row-major' );

return benchmark;

function benchmark( b ) {
var i;

b.tic();
for ( i = 0; i < b.iterations; i++ ) {
gfill( x, 5.0 );
if ( xbuf[ 0 ] !== 5.0 ) {
b.fail( 'unexpected result' );
}
}
b.toc();
if ( xbuf[ 0 ] !== 5.0 ) {
b.fail( 'unexpected result' );
}
b.pass( 'benchmark finished' );
b.end();
}
}


// MAIN //

/**
* Main execution sequence.
*
* @private
*/
function main() {
var len;
var min;
var max;
var f;
var i;

min = 1; // 10^min
max = 6; // 10^max

for ( i = min; i <= max; i++ ) {
len = pow( 10, i );
f = createBenchmark( len );
bench( pkg+':len='+len, f );

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}
}

main();
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{{alias}}( x, alpha )
Fills a one-dimensional ndarray with a specified value.

Parameters
----------
x: ndarray
Input ndarray.

alpha: any
Fill value.

Returns
-------
out: ndarray
Input ndarray.

Examples
--------
> var xbuf = [ 1.0, 2.0, 3.0 ];
> var dt = 'generic';
> var sh = [ xbuf.length ];
> var sx = [ 1 ];
> var ox = 0;
> var ord = 'row-major';
> var x = new {{alias:@stdlib/ndarray/ctor}}( dt, xbuf, sh, sx, ox, ord );
> {{alias}}( x, 5.0 )
<ndarray>
> xbuf
[ 5.0, 5.0, 5.0 ]

See Also
--------

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/*
* @license Apache-2.0
*
* Copyright (c) 2025 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

// TypeScript Version: 4.1

/// <reference types="@stdlib/types"/>

import { typedndarray } from '@stdlib/types/ndarray';

/**
* Fills a one-dimensional ndarray with a specified value.
*
* @param x - input ndarray
* @param alpha - fill value
* @returns input ndarray
*
* @example
* var ndarray = require( '@stdlib/ndarray/base/ctor' );
*
* var xbuf = [ 1.0, 2.0, 3.0, 4.0 ];
* var x = new ndarray( 'generic', xbuf, [ 4 ], [ 1 ], 0, 'row-major' );
*
* gfill( x, 5.0 );
* // xbuf => [ 5.0, 5.0, 5.0, 5.0 ]
*/
declare function gfill<T = any>( x: typedndarray<T>, alpha: T ): typedndarray<T>;

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// EXPORTS //

export = gfill;
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/*
* @license Apache-2.0
*
* Copyright (c) 2025 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

/* eslint-disable space-in-parens */

import zeros = require( '@stdlib/ndarray/zeros' );
import gfill = require( './index' );


// TESTS //

// The function returns an ndarray...
{
const x = zeros( [ 10 ], {
'dtype': 'float64'
});

gfill( x, 5.0 ); // $ExpectType typedndarray<number>
}

// The function works with generic values...
{
const x = zeros( [ 10 ], {
'dtype': 'generic'
});

gfill( x, { 'value': 42 } ); // $ExpectType typedndarray<any>
}

// The compiler throws an error if the function is provided a first argument which is not an ndarray...
{
gfill( '10', 5.0 ); // $ExpectError
gfill( 10, 5.0 ); // $ExpectError
gfill( true, 5.0 ); // $ExpectError
gfill( false, 5.0 ); // $ExpectError
gfill( null, 5.0 ); // $ExpectError
gfill( undefined, 5.0 ); // $ExpectError
gfill( [], 5.0 ); // $ExpectError
gfill( {}, 5.0 ); // $ExpectError
gfill( ( x: number ): number => x, 5.0 ); // $ExpectError
}

// The compiler throws an error if the function is provided an unsupported number of arguments...
{
const x = zeros( [ 10 ], {
'dtype': 'float64'
});

gfill(); // $ExpectError
gfill( x ); // $ExpectError
gfill( x, 5.0, {} ); // $ExpectError
}
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/**
* @license Apache-2.0
*
* Copyright (c) 2025 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

'use strict';

var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
var ndarray = require( '@stdlib/ndarray/base/ctor' );
var ndarray2array = require( '@stdlib/ndarray/to-array' );
var gfill = require( './../lib' );

var xbuf = discreteUniform( 10, -50, 50, {
'dtype': 'generic'
});
var x = new ndarray( 'generic', xbuf, [ xbuf.length ], [ 1 ], 0, 'row-major' );
console.log( ndarray2array( x ) );

gfill( x, 5.0 );
console.log( ndarray2array( x ) );
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