1// run
2
3// Copyright 2012 The Go Authors.  All rights reserved.
4// Use of this source code is governed by a BSD-style
5// license that can be found in the LICENSE file.
6
7// Converting constants between types must introduce rounding.
8
9package main
10
11import "fmt"
12
13const (
14    F32 = 0.00999999977648258209228515625
15    F64 = 0.01000000000000000020816681711721685132943093776702880859375
16)
17
18var F = float64(float32(0.01))
19
20func main() {
21	// 0.01 rounded to float32 then to float64 is F32.
22	// 0.01 represented directly in float64 is F64.
23	if F != F32 {
24		panic(fmt.Sprintf("F=%.1000g, want %.1000g", F, F32))
25	}
26}
27