gcc/testsuite/go.go-torture/execute/switch-1.go

   1 package main
   2
   3 func f1(i int) bool {
   4   switch j := i; j {
   5   case 3: fallthrough
   6   case 1: return true
   7   case 2: return false
   8   default: return false
   9   case 4: return true
  10   }
  11 }
  12
  13 func f2(i int) int {
  14   switch {
  15     case i < 0: return -1
  16     case i > 0: return 1
  17     default: return 0
  18     case i != 0: return 1000
  19   }
  20   panic(0)
  21 }
  22
  23 func f3(i int) int {
  24  lab:
  25   switch i {
  26     case 1: break
  27     case 2: return 2
  28     case 3, 4:
  29       switch i {
  30         case 3: break lab
  31         case 4: break
  32       }
  33       return 4
  34   }
  35   return 1
  36 }
  37
  38 func main() {
  39   if !f1(1) {
  40     panic(1);
  41   }
  42   if f1(2) {
  43     panic(2);
  44   }
  45   if !f1(3) {
  46     panic(3);
  47   }
  48   if !f1(4) {
  49     panic(4);
  50   }
  51   if f1(5) {
  52     panic(5);
  53   }
  54
  55   if f2(-100) != -1 {
  56     panic(6);
  57   }
  58   if f2(1000) != 1 {
  59     panic(7);
  60   }
  61   if f2(0) != 0 {
  62     panic(8);
  63   }
  64
  65   if f3(1) != 1 || f3(2) != 2 || f3(3) != 1 || f3(4) != 4 {
  66     panic(9);
  67   }
  68 }