go/test/fixedbugs/issue11326b.go
Ian Lance Taylor 626cc7c02d test: permit "exponent too large" error
The language spec only requires a signed binary exponent of 16 bits
for floating point constants. Permit a "exponent too large" error for
larger exponents.

Don't run test 11326b with gccgo, as it requires successful compilation
of floating point constants with exponents that don't fit in 16 bits.

Change-Id: I98688160c76864aba525a151a14aaaf86bc36a6f
Reviewed-on: https://go-review.googlesource.com/c/go/+/279252
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2020-12-18 23:47:11 +00:00

48 lines
820 B
Go

// run
// Does not work with gccgo, which uses a smaller (but still permitted)
// exponent size.
// +build !gccgo
// Copyright 2015 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
// Tests for golang.org/issue/11326.
func main() {
{
const n = 1e646456992
const d = 1e646456991
x := n / d
if x != 10.0 {
println("incorrect value:", x)
}
}
{
const n = 1e64645699
const d = 1e64645698
x := n / d
if x != 10.0 {
println("incorrect value:", x)
}
}
{
const n = 1e6464569
const d = 1e6464568
x := n / d
if x != 10.0 {
println("incorrect value:", x)
}
}
{
const n = 1e646456
const d = 1e646455
x := n / d
if x != 10.0 {
println("incorrect value:", x)
}
}
}