gcc/testsuite/gcc.dg/c2x-nullptr-4.c

   1 /* Test that -Wc11-c2x-compat issues a warning (not a pedwarn) about
   2    `nullptr' in C2X.  */
   3 /* { dg-do compile } */
   4 /* { dg-options "-std=c2x -pedantic-errors -Wc11-c2x-compat" } */
   5
   6 int *
   7 fn (int *p)
   8 {
   9   p = nullptr; /* { dg-warning "ISO C does not support .nullptr. before C2X" } */
  10   return p;
  11 }