gcc/testsuite/gcc.dg/cpp/trad/redef1.c

   1 /* Test for redefining traditional macros with insignificant
   2    (i.e. whitespace) differences.  */
   3
   4 /* { dg-do preprocess } */
   5
   6
   7 #define foo bar
   8 #define /* x */ foo /* x */ bar /* x */
   9
  10 #define quux(thud) a one and a thud and a two
  11 #define /**/ quux( thud ) /**/ a one and a /**/ thud /**/ and /**/ a two
  12 #define quux(thud) a one        and a thud and a        two /* bah */
  13
  14 #define f(x, y)x "x  y z"  y
  15 #define f(x, y) x  "x  y z" y
  16
  17 #define baz() whiz bang
  18 #define baz() whiz  bang
  19
  20 #define g foo
  21 #undef g
  22 #define g
  23
  24 /* { dg-bogus "redefined" "foo redefined"       { target *-*-* } 8 } */
  25 /* { dg-bogus "redefined" "quux redefined"      { target *-*-* } 11 } */
  26 /* { dg-bogus "redefined" "quux redefined"      { target *-*-* } 12 } */
  27 /* { dg-bogus "redefined" "f redefined"         { target *-*-* } 15 } */
  28 /* { dg-bogus "redefined" "baz redefined"       { target *-*-* } 18 } */
  29 /* { dg-bogus "redefined" "g redefined"         { target *-*-* } 22 } */
  30
  31 /* { dg-bogus "previous def" "foo prev def"     { target *-*-* } 7 } */
  32 /* { dg-bogus "previous def" "quux prev def"    { target *-*-* } 10 } */
  33 /* { dg-bogus "previous def" "quux prev def"    { target *-*-* } 11 } */
  34 /* { dg-bogus "previous def" "f prev def"       { target *-*-* } 14 } */
  35 /* { dg-bogus "previous def" "baz prev def"     { target *-*-* } 17 } */
  36 /* { dg-bogus "previous def" "g prev def"       { target *-*-* } 20 } */