| // $G $D/$F.go && $L $F.$A && ./$A.out |
| |
| // 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" |
| |
| type T int |
| |
| func (t T) String() string { return fmt.Sprintf("T%d", int(t)) } |
| |
| const ( |
| A T = 1 << (1 << iota) |
| B |
| C |
| D |
| E |
| ) |
| |
| func main() { |
| s := fmt.Sprintf("%v %v %v %v %v", A, B, C, D, E) |
| if s != "T2 T4 T16 T256 T65536" { |
| println("type info didn't propagate in const: got", s) |
| panic("fail") |
| } |
| x := uint(5) |
| y := float64(uint64(1)<<x) // used to fail to compile |
| if y != 32 { |
| println("wrong y", y) |
| panic("fail") |
| } |
| } |
