// Copyright 2009 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 | |
// Abs returns the absolute value of x. | |
// | |
// Special cases are: | |
// Abs(±Inf) = +Inf | |
// Abs(NaN) = NaN | |
//extern fabs | |
func libc_fabs(float64) float64 | |
func Abs(x float64) float64 { | |
return libc_fabs(x) | |
} | |
func abs(x float64) float64 { | |
return Float64frombits(Float64bits(x) &^ (1 << 63)) | |
} |