| // $G $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" |
| "os" |
| "utf8" |
| ) |
| |
| func main() { |
| s := "\000\123\x00\xca\xFE\u0123\ubabe\U0000babe\U0010FFFFx" |
| expect := []rune{0, 0123, 0, 0xFFFD, 0xFFFD, 0x123, 0xbabe, 0xbabe, 0x10FFFF, 'x'} |
| offset := 0 |
| var i int |
| var c rune |
| ok := true |
| cnum := 0 |
| for i, c = range s { |
| r, size := utf8.DecodeRuneInString(s[i:len(s)]) // check it another way |
| if i != offset { |
| fmt.Printf("unexpected offset %d not %d\n", i, offset) |
| ok = false |
| } |
| if r != expect[cnum] { |
| fmt.Printf("unexpected rune %d from DecodeRuneInString: %x not %x\n", i, r, expect[cnum]) |
| ok = false |
| } |
| if c != expect[cnum] { |
| fmt.Printf("unexpected rune %d from range: %x not %x\n", i, r, expect[cnum]) |
| ok = false |
| } |
| offset += size |
| cnum++ |
| } |
| if i != len(s)-1 { |
| fmt.Println("after loop i is", i, "not", len(s)-1) |
| ok = false |
| } |
| |
| i = 12345 |
| c = 23456 |
| for i, c = range "" { |
| } |
| if i != 12345 { |
| fmt.Println("range empty string assigned to index:", i) |
| ok = false |
| } |
| if c != 23456 { |
| fmt.Println("range empty string assigned to value:", c) |
| ok = false |
| } |
| |
| if !ok { |
| fmt.Println("BUG: stringrange") |
| os.Exit(1) |
| } |
| } |