...
Run Format

Source file src/math/abs.go

  // 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
  func Abs(x float64) float64 {
  	// TODO: once golang.org/issue/13095 is fixed, change this to:
  	// return Float64frombits(Float64bits(x) &^ (1 << 63))
  	// But for now, this generates better code and can also be inlined:
  	if x < 0 {
  		return -x
  	}
  	if x == 0 {
  		return 0 // return correctly abs(-0)
  	}
  	return x
  }
  

View as plain text