| // Copyright 2014 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. |
| |
| // Unsigned integers spanning zero. |
| |
| package main |
| |
| import "fmt" |
| |
| type Unum uint8 |
| |
| const ( |
| m_2 Unum = iota + 253 |
| m_1 |
| ) |
| |
| const ( |
| m0 Unum = iota |
| m1 |
| m2 |
| ) |
| |
| func main() { |
| ck(^Unum(0)-3, "Unum(252)") |
| ck(m_2, "m_2") |
| ck(m_1, "m_1") |
| ck(m0, "m0") |
| ck(m1, "m1") |
| ck(m2, "m2") |
| ck(3, "Unum(3)") |
| } |
| |
| func ck(unum Unum, str string) { |
| if fmt.Sprint(unum) != str { |
| panic("unum.go: " + str) |
| } |
| } |
