mirror of
https://github.com/golang/go
synced 2024-10-04 18:21:21 -06:00
9aa8f95ba8
Added Signbit(), revised Copysign() R=rsc CC=golang-dev https://golang.org/cl/822045
11 lines
302 B
Go
11 lines
302 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.
|
|
|
|
package math
|
|
|
|
// Signbit returns true if x is negative or negative zero.
|
|
func Signbit(x float64) bool {
|
|
return Float64bits(x)&(1<<63) != 0
|
|
}
|