function cflipsignf( z, y ) {
	var v = addon( z, y );
	return new Complex64( v.re, v.im );
}
Returns a single-precision complex floating-point number with the same magnitude as `z` and the sign of `y*z`.

@private
@param {Complex64} z - complex number
@param {number} y - number from which to derive the sign
@returns {Complex64} result

@example
var Complex64 = require( '@stdlib/complex/float32/ctor' );
var real = require( '@stdlib/complex/float32/real' );
var imag = require( '@stdlib/complex/float32/imag' );

var v = cflipsignf( new Complex64( -4.0, 5.5 ), -55.0 );
// returns <Complex64>

var re = real( v );
// returns 4.0

var im = imag( v );
// returns -5.5