// run // Copyright 2011 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. // Troublesome floating point constants. Issue 1463. package main import "fmt" func check(test string, got, want float64) bool { if got != want { fmt.Println(test, "got", got, "want", want) return false } return true } func main() { good := true // http://www.exploringbinary.com/java-hangs-when-converting-2-2250738585072012e-308/ good = good && check("2.2250738585072012e-308", 2.2250738585072012e-308, 2.2250738585072014e-308) // http://www.exploringbinary.com/php-hangs-on-numeric-value-2-2250738585072011e-308/ good = good && check("2.2250738585072011e-308", 2.2250738585072011e-308, 2.225073858507201e-308) if !good { panic("fail") } }