| 1 | package main |
|---|---|
| 2 | |
| 3 | // Tests of range loops. |
| 4 | |
| 5 | import "fmt" |
| 6 | |
| 7 | // Range over string. |
| 8 | func init() { |
| 9 | if x := len("Hello, 世界"); x != 13 { // bytes |
| 10 | panic(x) |
| 11 | } |
| 12 | var indices []int |
| 13 | var runes []rune |
| 14 | for i, r := range "Hello, 世界" { |
| 15 | runes = append(runes, r) |
| 16 | indices = append(indices, i) |
| 17 | } |
| 18 | if x := fmt.Sprint(runes); x != "[72 101 108 108 111 44 32 19990 30028]" { |
| 19 | panic(x) |
| 20 | } |
| 21 | if x := fmt.Sprint(indices); x != "[0 1 2 3 4 5 6 7 10]" { |
| 22 | panic(x) |
| 23 | } |
| 24 | s := "" |
| 25 | for _, r := range runes { |
| 26 | s += string(r) |
| 27 | } |
| 28 | if s != "Hello, 世界" { |
| 29 | panic(s) |
| 30 | } |
| 31 | |
| 32 | var x int |
| 33 | for range "Hello, 世界" { |
| 34 | x++ |
| 35 | } |
| 36 | if x != len(indices) { |
| 37 | panic(x) |
| 38 | } |
| 39 | } |
| 40 | |
| 41 | // Regression test for range of pointer to named array type. |
| 42 | func init() { |
| 43 | type intarr [3]int |
| 44 | ia := intarr{1, 2, 3} |
| 45 | var count int |
| 46 | for _, x := range &ia { |
| 47 | count += x |
| 48 | } |
| 49 | if count != 6 { |
| 50 | panic(count) |
| 51 | } |
| 52 | } |
| 53 | |
| 54 | func main() { |
| 55 | } |
| 56 |
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