| // $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 |
| |
| type T struct { |
| i int |
| f float64 |
| s string |
| next *T |
| } |
| |
| type R struct { |
| num int |
| } |
| |
| func itor(a int) *R { |
| r := new(R) |
| r.num = a |
| return r |
| } |
| |
| func eq(a []*R) { |
| for i := 0; i < len(a); i++ { |
| if a[i].num != i { |
| panic("bad") |
| } |
| } |
| } |
| |
| func teq(t *T, n int) { |
| for i := 0; i < n; i++ { |
| if t == nil || t.i != i { |
| panic("bad") |
| } |
| t = t.next |
| } |
| if t != nil { |
| panic("bad") |
| } |
| } |
| |
| type P struct { |
| a, b int |
| } |
| |
| func NewP(a, b int) *P { |
| return &P{a, b} |
| } |
| |
| func main() { |
| var t T |
| t = T{0, 7.2, "hi", &t} |
| |
| var tp *T |
| tp = &T{0, 7.2, "hi", &t} |
| |
| tl := &T{i: 0, next: &T{i: 1, next: &T{i: 2, next: &T{i: 3, next: &T{i: 4}}}}} |
| teq(tl, 5) |
| |
| a1 := []int{1, 2, 3} |
| if len(a1) != 3 { |
| panic("a1") |
| } |
| a2 := [10]int{1, 2, 3} |
| if len(a2) != 10 || cap(a2) != 10 { |
| panic("a2") |
| } |
| |
| a3 := [10]int{1, 2, 3} |
| if len(a3) != 10 || a2[3] != 0 { |
| panic("a3") |
| } |
| |
| var oai []int |
| oai = []int{1, 2, 3} |
| if len(oai) != 3 { |
| panic("oai") |
| } |
| |
| at := [...]*T{&t, tp, &t} |
| if len(at) != 3 { |
| panic("at") |
| } |
| |
| c := make(chan int) |
| ac := []chan int{c, c, c} |
| if len(ac) != 3 { |
| panic("ac") |
| } |
| |
| aat := [][len(at)]*T{at, at} |
| if len(aat) != 2 || len(aat[1]) != 3 { |
| panic("aat") |
| } |
| |
| s := string([]byte{'h', 'e', 'l', 'l', 'o'}) |
| if s != "hello" { |
| panic("s") |
| } |
| |
| m := map[string]float64{"one": 1.0, "two": 2.0, "pi": 22. / 7.} |
| if len(m) != 3 { |
| panic("m") |
| } |
| |
| eq([]*R{itor(0), itor(1), itor(2), itor(3), itor(4), itor(5)}) |
| eq([]*R{{0}, {1}, {2}, {3}, {4}, {5}}) |
| |
| p1 := NewP(1, 2) |
| p2 := NewP(1, 2) |
| if p1 == p2 { |
| panic("NewP") |
| } |
| } |