gcc/testsuite/gcc.dg/stmt-expr-2.c

   1 /* Test diagnostic for GNU extension: statement expressions.  Test
   2    with -pedantic.  */
   3 /* Origin: Joseph Myers <joseph@codesourcery.com> */
   4 /* { dg-do compile } */
   5 /* { dg-options "-std=gnu99 -pedantic" } */
   6
   7 int
   8 f (void)
   9 {
  10   return ({ 1; }); /* { dg-warning "warning: ISO C forbids braced-groups within expressions" } */
  11 }