gcc/testsuite/go.test/test/if.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 if statements in various forms.
   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         i5 := 5
  20         i7 := 7
  21
  22         var count int
  23
  24         count = 0
  25         if true {
  26                 count = count + 1
  27         }
  28         assertequal(count, 1, "if true")
  29
  30         count = 0
  31         if false {
  32                 count = count + 1
  33         }
  34         assertequal(count, 0, "if false")
  35
  36         count = 0
  37         if one := 1; true {
  38                 count = count + one
  39         }
  40         assertequal(count, 1, "if true one")
  41
  42         count = 0
  43         if one := 1; false {
  44                 count = count + 1
  45                 _ = one
  46         }
  47         assertequal(count, 0, "if false one")
  48
  49         count = 0
  50         if i5 < i7 {
  51                 count = count + 1
  52         }
  53         assertequal(count, 1, "if cond")
  54
  55         count = 0
  56         if true {
  57                 count = count + 1
  58         } else {
  59                 count = count - 1
  60         }
  61         assertequal(count, 1, "if else true")
  62
  63         count = 0
  64         if false {
  65                 count = count + 1
  66         } else {
  67                 count = count - 1
  68         }
  69         assertequal(count, -1, "if else false")
  70
  71         count = 0
  72         if t := 1; false {
  73                 count = count + 1
  74                 _ = t
  75                 t := 7
  76                 _ = t
  77         } else {
  78                 count = count - t
  79         }
  80         assertequal(count, -1, "if else false var")
  81
  82         count = 0
  83         t := 1
  84         if false {
  85                 count = count + 1
  86                 t := 7
  87                 _ = t
  88         } else {
  89                 count = count - t
  90         }
  91         _ = t
  92         assertequal(count, -1, "if else false var outside")
  93 }