function cscal( N, alpha, x, strideX ) {
	var ox = stride2offset( N, strideX );
	return ndarray( N, alpha, x, strideX, ox );
}
Scales a single-precision complex floating-point vector by a single-precision complex floating-point constant.

@param {PositiveInteger} N - number of indexed elements
@param {Complex64} alpha - constant
@param {Complex64Array} x - input array
@param {integer} strideX - `x` stride length
@returns {Complex64Array} input array

@example
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( 2.0, 2.0 );

cscal( 3, alpha, x, 1 );
// x => <Complex64Array>[ -2.0, 6.0, -2.0, 14.0, -2.0, 22.0 ]