Plan 9 from Bell Labs’s /usr/web/sources/contrib/stallion/root/386/go/test/fixedbugs/issue6899.go
// run // Copyright 2013 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 main import "math" func main() { println(math.Copysign(0, -1)) }