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 /* { dg-bogus "redefined" "foo redefined"       { target *-*-* } .-1 } */
  10 /* { dg-bogus "previous def" "foo prev def"     { target *-*-* } .-3 } */
  11
  12 #define quux(thud) a one and a thud and a two /* { dg-line quux_def_1 } */
  13 #define /**/ quux( thud ) /**/ a one and a /**/ thud /**/ and /**/ a two /* { dg-line quux_def_2 } */
  14 /* { dg-bogus "redefined" "quux redefined"      { target *-*-* } quux_def_2 } */
  15 /* { dg-bogus "previous def" "quux prev def"    { target *-*-* } quux_def_1 } */
  16
  17 #define quux(thud) a one        and a thud and a        two /* bah */ /* { dg-line quux_def_3 } */
  18 /* { dg-bogus "redefined" "quux redefined"      { target *-*-* } quux_def_3 } */
  19 /* { dg-bogus "previous def" "quux prev def"    { target *-*-* } quux_def_2 } */
  20
  21 #define f(x, y)x "x  y z"  y
  22 #define f(x, y) x  "x  y z" y
  23 /* { dg-bogus "redefined" "f redefined"         { target *-*-* } .-1 } */
  24 /* { dg-bogus "previous def" "f prev def"       { target *-*-* } .-3 } */
  25
  26 #define baz() whiz bang
  27 #define baz() whiz  bang
  28 /* { dg-bogus "redefined" "baz redefined"       { target *-*-* } .-1 } */
  29 /* { dg-bogus "previous def" "baz prev def"     { target *-*-* } .-3 } */
  30
  31 #define g foo
  32 #undef g
  33 #define g
  34 /* { dg-bogus "redefined" "g redefined"         { target *-*-* } .-1 } */
  35 /* { dg-bogus "previous def" "g prev def"       { target *-*-* } .-4 } */