mirror of https://go.googlesource.com/go
13 lines
396 B
Go
13 lines
396 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
|
|
|
|
// Copysign returns a value with the magnitude of f
|
|
// and the sign of sign.
|
|
func Copysign(f, sign float64) float64 {
|
|
const signBit = 1 << 63
|
|
return Float64frombits(Float64bits(f)&^signBit | Float64bits(sign)&signBit)
|
|
}
|