gcc/testsuite/gcc.dg/cpp/warn-traditional-2.c

   1 // { dg-do compile }
   2 // { dg-options "-std=gnu99 -fdiagnostics-show-option -Werror=traditional -Wno-deprecated -Wno-long-long" }
   3 /* { dg-message "some warnings being treated as errors" "" {target "*-*-*"} 0 } */
   4 #assert x(x)         // { dg-error "suggest hiding #assert from traditional C with an indented # .-Werror=traditional." }
   5
   6  #define X X         // { dg-error "traditional C ignores #define with the # indented .-Werror=traditional." }
   7
   8 #if 0
   9 #elif 1              // { dg-error "suggest not using #elif in traditional C .-Werror=traditional." }
  10 #endif
  11
  12 #define f(X) X
  13 int f;               // { dg-error "function-like macro \"f\" must be used with arguments in traditional C .-Werror=traditional." }
  14
  15 #if 0U               // { dg-error "traditional C rejects the \"U\" suffix .-Werror=traditional." }
  16 #endif
  17
  18 #if +1               // { dg-error " traditional C rejects the unary plus operator .-Werror=traditional." }
  19 #endif
  20
  21 char *x = "\x0";     // { dg-error "the meaning of '.x' is different in traditional C .-Werror=traditional." }
  22 char *y = "\a";      // { dg-error "the meaning of '.a' is different in traditional C .-Werror=traditional." }
  23 char *z = "\u0F43";  // { dg-error "the meaning of '.u' is different in traditional C .-Werror=traditional." }