Source file src/math/copysign.go

Documentation: math

		 1  // Copyright 2010 The Go Authors. All rights reserved.
		 2  // Use of this source code is governed by a BSD-style
		 3  // license that can be found in the LICENSE file.
		 4  
		 5  package math
		 6  
		 7  // Copysign returns a value with the magnitude
		 8  // of x and the sign of y.
		 9  func Copysign(x, y float64) float64 {
		10  	const sign = 1 << 63
		11  	return Float64frombits(Float64bits(x)&^sign | Float64bits(y)&sign)
		12  }
		13  

View as plain text