function cnegf( z ) {
	var v = addon( z );
	return new Complex64( v.re, v.im );
}
Negates a single-precision complex floating-point number.

@private
@param {Complex64} z - complex number
@returns {Complex64} result

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

var z = new Complex64( -4.2, 5.5 );

var out = cnegf( z );
// returns <Complex64>[ ~4.2, -5.5 ]

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

var z = new Complex64( 0.0, 0.0 );

var out = cnegf( z );
// returns <Complex64>[ -0.0, -0.0 ]

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

var z = new Complex64( NaN, NaN );

var out = cnegf( z );
// returns <Complex64>[ NaN, NaN ]