| // $G $D/$F.go && $L $F.$A && ./$A.out || echo BUG: should not panic |
| |
| // Copyright 2009 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 "fmt" |
| |
| func f0() string { |
| const f = 3.141592; |
| return fmt.Sprintf("%v", float64(f)); |
| } |
| |
| |
| func f1() string { |
| const f = 3.141592; |
| x := float64(float32(f)); // appears to change the precision of f |
| _ = x; |
| return fmt.Sprintf("%v", float64(f)); |
| } |
| |
| |
| func main() { |
| r0 := f0(); |
| r1 := f1(); |
| if r0 != r1 { |
| println("r0 =", r0); |
| println("r1 =", r1); |
| panic("r0 and r1 should be the same"); |
| } |
| } |
