gcc/testsuite/gcc.dg/cpp/syshdr4.c

   1 /* Contributed by Nicholas Ormrod */
   2 /* Origin: PR preprocessor/60723 */
   3
   4 /* This tests that multi-line macro callsites, which are defined
   5    in system headers and whose expansion contains a builtin followed
   6    by a non-builtin token, do not generate a line directive that
   7    mark the current file as being a system file, when performing
   8    non-integrated preprocessing. */
   9 /* System files suppress div-by-zero warnings, so the presence of
  10    such indicates the lack of the bug.
  11
  12    { dg-do compile }
  13    { dg-options -no-integrated-cpp }  */
  14
  15 #include "syshdr4.h"
  16 FOO(
  17 )
  18
  19 int
  20 foo()
  21 {
  22   return 1 / 0; /* { dg-warning "div-by-zero" } */
  23   return 0;
  24 }