go source for verification 2026-05-22

test/fixedbugs/bug321.go

@@ -0,0 +1,30 @@
+// 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")
+	}
+}