gcc/testsuite/gcc.dg/binary-constants-2.c

   1 /* Test for binary integer constants: -pedantic warnings.  */
   2
   3 /* Origin: Joerg Wunsch <j.gnu@uriah.heep.sax.de>.  */
   4 /* { dg-do compile } */
   5 /* { dg-options "-std=iso9899:1999 -pedantic" } */
   6
   7 #define FOO 0b1101
   8
   9 int
  10 foo (void)
  11 {
  12 #if FOO /* { dg-warning "binary constants are a GCC extension" } */
  13   return 23;
  14 #endif
  15   return 0b1101; /* { dg-warning "binary constants are a GCC extension" } */
  16 }