gcc/testsuite/gcc.dg/cpp/if-cexp.c

   1 /* { dg-do preprocess } */
   2
   3 /* Test the ? : opearator, for precedence and both true and false.  */
   4
   5 #if  1 ? 1 ? 2 : 0 : 0
   6 #error OK       /* { dg-error "OK" "nested ? :" } */
   7 #endif
   8
   9 #if  ((0) ? (1) ? (2) : (3) : (4) ? (5): (6)) == 5
  10 #error OK       /* { dg-error "OK" "nested ? : with parens" } */
  11 #endif
  12
  13 #if 2:          /* { dg-error "':' without" "immediate :" } */
  14 #endif