codekingpro/portable-devtools

1// Copyright 2010 The Go Authors. All rights reserved.2// Use of this source code is governed by a BSD-style3// license that can be found in the LICENSE file.4 5package math6 7// Signbit reports whether x is negative or negative zero.8func Signbit(x float64) bool {9	return int64(Float64bits(x)) < 010}11