Usage

`javascript
var cfill = require( '@stdlib/blas-ext-base-cfill' );
`

#### cfill( N, alpha, x, strideX )

Fills a single-precision complex floating-point strided array x with a specified scalar constant alpha.

`javascript
var Complex64Array = require( '@stdlib/array-complex64' );
var Complex64 = require( '@stdlib/complex-float32-ctor' );

var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );

var alpha = new Complex64( 10.0, 10.0 );

cfill( x.length, alpha, x, 1 );
// x => [ 10.0, 10.0, 10.0, 10.0, 10.0, 10.0, 10.0, 10.0 ]
`

The function has the following parameters:

- N: number of indexed elements.
- alpha: scalar constant.
- x: input [Complex64Array][@stdlib/array/complex64].
- strideX: stride length.

The N and stride parameters determine which elements in the strided array are accessed at runtime. For example, to fill every other element:

`javascript
var Complex64Array = require( '@stdlib/array-complex64' );
var Complex64 = require( '@stdlib/complex-float32-ctor' );

var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );

var alpha = new Complex64( 10.0, 10.0 );

cfill( 2, alpha, x, 2 );
// x => [ 10.0, 10.0, 3.0, 4.0, 10.0, 10.0, 7.0, 8.0 ]
`

Note that indexing is relative to the first index. To introduce an offset, use [typed array][mdn-typed-array] views.

`javascript
var Complex64Array = require( '@stdlib/array-complex64' );
var Complex64 = require( '@stdlib/complex-float32-ctor' );

// Initial array:
var x0 = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );

// Create an offset view:
var x1 = new Complex64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element

// Define a scalar constant:
var alpha = new Complex64( 10.0, 10.0 );

// Fill every other element:
cfill( 2, alpha, x1, 2 );
// x0 => [ 1.0, 2.0, 10.0, 10.0, 5.0, 6.0, 10.0, 10.0 ]
`

#### cfill.ndarray( N, alpha, x, strideX, offsetX )

Fills a single-precision complex floating-point strided array x with a specified scalar constant alpha using alternative indexing semantics.

`javascript
var Complex64Array = require( '@stdlib/array-complex64' );
var Complex64 = require( '@stdlib/complex-float32-ctor' );

var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );

var alpha = new Complex64( 10.0, 10.0 );

cfill.ndarray( x.length, alpha, x, 1, 0 );
// x => [ 10.0, 10.0, 10.0, 10.0, 10.0, 10.0, 10.0, 10.0 ]
`

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 two elements of the strided array:

`javascript
var Complex64Array = require( '@stdlib/array-complex64' );
var Complex64 = require( '@stdlib/complex-float32-ctor' );

var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );

var alpha = new Complex64( 10.0, 10.0 );

cfill.ndarray( 2, alpha, x, 1, 1 );
// x => [ 1.0, 2.0, 10.0, 10.0, 10.0, 10.0 ]
`