zfs-localpv/vendor/gonum.org/v1/gonum/internal/cmplx64/isnan.go
prateekpandey14 fa76b346a0 feat(modules): migrate to go modules and bump go version 1.14.4
- migrate to go module
- bump go version 1.14.4

Signed-off-by: prateekpandey14 <prateek.pandey@mayadata.io>
2020-06-09 22:27:01 +05:30

29 lines
796 B
Go

// 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.
// Copyright ©2017 The Gonum 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 cmplx64
import math "gonum.org/v1/gonum/internal/math32"
// IsNaN returns true if either real(x) or imag(x) is NaN
// and neither is an infinity.
func IsNaN(x complex64) bool {
switch {
case math.IsInf(real(x), 0) || math.IsInf(imag(x), 0):
return false
case math.IsNaN(real(x)) || math.IsNaN(imag(x)):
return true
}
return false
}
// NaN returns a complex ``not-a-number'' value.
func NaN() complex64 {
nan := math.NaN()
return complex(nan, nan)
}