clang/test/Parser/statements.c

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s -Wno-unreachable-code
   2
   3 void test1() {
   4   { ; {  ;;}} ;;
   5 }
   6
   7 void test2() {
   8   if (0) { if (1) {} } else { }
   9
  10   do { } while (0);
  11
  12   while (0) while(0) do ; while(0);
  13
  14   for ((void)0;0;(void)0)
  15     for (;;)
  16       for ((void)9;0;(void)2)
  17         ;
  18   for (int X = 0; 0; (void)0);
  19 }
  20
  21 void test3() {
  22     switch (0) {
  23
  24     case 4:
  25       if (0) {
  26     case 6: ;
  27       }
  28     default:
  29       ;
  30   }
  31 }
  32
  33 void test4() {
  34   if (0);  // expected-warning {{if statement has empty body}} expected-note {{put the semicolon on a separate line to silence this warning}}
  35
  36   int X;  // declaration in a block.
  37
  38 foo:  if (0); // expected-warning {{if statement has empty body}} expected-note {{put the semicolon on a separate line to silence this warning}}
  39 }
  40
  41 typedef int t;
  42 void test5() {
  43   if (0);   // expected-warning {{if statement has empty body}} expected-note {{put the semicolon on a separate line to silence this warning}}
  44
  45   t x = 0;
  46
  47   if (0);  // expected-warning {{if statement has empty body}} expected-note {{put the semicolon on a separate line to silence this warning}}
  48 }
  49
  50
  51 void test6(void) {
  52   do
  53     .           // expected-error {{expected expression}}
  54    while (0);
  55 }
  56
  57 int test7() {
  58   return 4     // expected-error {{expected ';' after return statement}}
  59 }
  60
  61 void test8() {
  62   // Should not skip '}' and produce a "expected '}'" error.
  63   undecl // expected-error {{use of undeclared identifier 'undecl'}}
  64 }
  65
  66 int test9() {
  67   int T[] = {1, 2, };
  68
  69   int X;
  70   X = 0, // expected-error {{expected ';' after expression}}
  71     {
  72     }
  73
  74   X = 0, // expected-error {{expected ';' after expression}}
  75   if (0)
  76     ;
  77
  78   return 4, // expected-error {{expected ';' after return statement}}
  79 }