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Source file src/math/signbit.go

Documentation: math

  // 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
  // Signbit returns true if x is negative or negative zero.
  func Signbit(x float64) bool {
  	return Float64bits(x)&(1<<63) != 0

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