gcc/testsuite/gcc.dg/pragma-diag-4.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Wsign-compare -Werror=sign-compare -Werror=switch-enum" } */
   3 /* { dg-message "warnings being treated as errors" "" {target "*-*-*"} 0 } */
   4
   5 int bar()
   6 {
   7   unsigned x = 0;
   8   int y = 1;
   9
  10   /* generates an error - ok */
  11   x += x < y ? 1 : 0; /* { dg-error "comparison" } */
  12
  13 #pragma GCC diagnostic push
  14 #pragma GCC diagnostic ignored "-Wsign-compare"
  15   /* generates no diagnostic - ok */
  16   x += x < y ? 1 : 0;
  17 #pragma GCC diagnostic pop
  18
  19   x += x < y ? 1 : 0; /* { dg-error "comparison" } */
  20
  21   return x;
  22 }
  23
  24 enum EE { ONE, TWO };
  25
  26 int f (enum EE e)
  27 {
  28   int r = 0;
  29
  30 #pragma GCC diagnostic push
  31 #pragma GCC diagnostic ignored "-Wswitch-enum"
  32
  33   switch (e)
  34     {
  35     case ONE:
  36       r = 1;
  37       break;
  38     }
  39 #pragma GCC diagnostic pop
  40
  41   switch (e) /* { dg-error "switch" } */
  42     {
  43     case ONE:
  44       r = 1;
  45       break;
  46     }
  47   return r;
  48 }