gcc/testsuite/go.test/test/for.go

   1 // run
   2
   3 // Copyright 2009 The Go Authors. All rights reserved.
   4 // Use of this source code is governed by a BSD-style
   5 // license that can be found in the LICENSE file.
   6
   7 // Test for loops.
   8
   9 package main
  10
  11 func assertequal(is, shouldbe int, msg string) {
  12         if is != shouldbe {
  13                 print("assertion fail", msg, "\n")
  14                 panic(1)
  15         }
  16 }
  17
  18 func main() {
  19         var i, sum int
  20
  21         i = 0
  22         for {
  23                 i = i + 1
  24                 if i > 5 {
  25                         break
  26                 }
  27         }
  28         assertequal(i, 6, "break")
  29
  30         sum = 0
  31         for i := 0; i <= 10; i++ {
  32                 sum = sum + i
  33         }
  34         assertequal(sum, 55, "all three")
  35
  36         sum = 0
  37         for i := 0; i <= 10; {
  38                 sum = sum + i
  39                 i++
  40         }
  41         assertequal(sum, 55, "only two")
  42
  43         sum = 0
  44         for sum < 100 {
  45                 sum = sum + 9
  46         }
  47         assertequal(sum, 99 + 9, "only one")
  48
  49         sum = 0
  50         for i := 0; i <= 10; i++ {
  51                 if i % 2 == 0 {
  52                         continue
  53                 }
  54                 sum = sum + i
  55         }
  56         assertequal(sum, 1+3+5+7+9, "continue")
  57
  58 }