gcc/testsuite/gcc.dg/cpp/pr29612-2.c

   1 /* PR preprocessor/29612 */
   2 /* { dg-do preprocess } */
   3 /* { dg-options "-Wtraditional" } */
   4
   5 # 6 "pr29612-2.c"
   6
   7 #if 1U /* { dg-warning "traditional C rejects" "numeric constant suffix" } */
   8 #endif
   9
  10 # 1 "foo.h" 1 3
  11
  12 #if 1U
  13 #endif /* No warning in system header.  */
  14
  15 # 16 "pr29612-2.c" 2
  16
  17 #if 1U /* { dg-warning "traditional C rejects" "numeric constant suffix" } */
  18 #endif