function cround( z ) {
	return new Complex128( round( real( z ) ), round( imag( z ) ) );
}
Rounds each component of a double-precision complex floating-point number to the nearest integer.

@param {Complex128} z - complex number
@returns {Complex128} rounded complex number

@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

v = cround( new Complex128( 9.99999, 0.1 ) );
// returns <Complex128>

re = real( v );
// returns 10.0

im = imag( v );
// returns 0.0

v = cround( new Complex128( 0.0, 0.0 ) );
// returns <Complex128>

re = real( v );
// returns 0.0

im = imag( v );
// returns 0.0

v = cround( new Complex128( NaN, NaN ) );
// returns <Complex128>

re = real( v );
// returns NaN

im = imag( v );
// returns NaN