// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package cmplx

import 

// IsNaN reports whether either real(x) or imag(x) is NaN
// and neither is an infinity.
func ( complex128) bool {
	switch {
	case math.IsInf(real(), 0) || math.IsInf(imag(), 0):
		return false
	case math.IsNaN(real()) || math.IsNaN(imag()):
		return true
	}
	return false
}

// NaN returns a complex ``not-a-number'' value.
func () complex128 {
	 := math.NaN()
	return complex(, )
}