function cround( z ) {
	var v = addon( z );
	return new Complex128( v.re, v.im );
}
Rounds each component of a double-precision complex floating-point number to the nearest integer.

@private
@param {Complex128} z - complex number
@returns {Complex128} result

@example
var Complex128 = require( '@stdlib/complex/float64/ctor' );
var real = require( '@stdlib/complex/float64/real' );
var imag = require( '@stdlib/complex/float64/imag' );

var v = cround( new Complex128( -4.2, 5.5 ) );
// returns <Complex128>

var re = real( v );
// returns -4

var im = imag( v );
// returns 6.0