gcc/testsuite/gcc.dg/cpp/redef3.c

   1 /* Test for redefining macros with mismatch token count (and the oddity). */
   2
   3 /* { dg-do preprocess } */
   4 /* { dg-options "-DC -DD=1 -DE" } */
   5
   6 #define A
   7 #define A 1
   8 #define B 2 3
   9 #define B 2
  10 #define C 1
  11 #define D 1 2
  12 #define E
  13
  14 /* { dg-warning "redefined" "redef A"      { target *-*-* } 7  }
  15    { dg-warning "redefined" "redef B"      { target *-*-* } 9  }
  16    { dg-warning "redefined" "redef D"      { target *-*-* } 11 }
  17    { dg-warning "redefined" "redef E"      { target *-*-* } 12 }
  18    { dg-warning "previous"  "prev def A"   { target *-*-* } 6  }
  19    { dg-warning "previous"  "prev def B"   { target *-*-* } 8  }
  20    { dg-warning "previous"  "prev def D/E" { target *-*-* } 0  }
  21 */