...
Run Format

Source file src/math/modf.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
  
  // Modf returns integer and fractional floating-point numbers
  // that sum to f. Both values have the same sign as f.
  //
  // Special cases are:
  //	Modf(±Inf) = ±Inf, NaN
  //	Modf(NaN) = NaN, NaN
  func Modf(f float64) (int float64, frac float64)
  
  func modf(f float64) (int float64, frac float64) {
  	if f < 1 {
  		switch {
  		case f < 0:
  			int, frac = Modf(-f)
  			return -int, -frac
  		case f == 0:
  			return f, f // Return -0, -0 when f == -0
  		}
  		return 0, f
  	}
  
  	x := Float64bits(f)
  	e := uint(x>>shift)&mask - bias
  
  	// Keep the top 12+e bits, the integer part; clear the rest.
  	if e < 64-12 {
  		x &^= 1<<(64-12-e) - 1
  	}
  	int = Float64frombits(x)
  	frac = f - int
  	return
  }
  

View as plain text