mirror of
https://github.com/golang/go
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39 lines
549 B
Go
39 lines
549 B
Go
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// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Unsigned integers spanning zero.
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package main
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import "fmt"
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type Unum uint8
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const (
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m_2 Unum = iota + 253
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m_1
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)
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const (
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m0 Unum = iota
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m1
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m2
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)
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func main() {
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ck(^Unum(0)-3, "Unum(252)")
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ck(m_2, "m_2")
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ck(m_1, "m_1")
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ck(m0, "m0")
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ck(m1, "m1")
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ck(m2, "m2")
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ck(3, "Unum(3)")
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}
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func ck(unum Unum, str string) {
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if fmt.Sprint(unum) != str {
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panic("unum.go: " + str)
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}
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}
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