gcc/testsuite/gcc.dg/cpp/line3.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Wwrite-strings" } */
   3 /* The purpose of this test is to ensure that line numbers in diagnostics
   4    are accurate after macros whose arguments contain newlines and are
   5    substituted multiple times.  The semicolons are on separate lines because
   6    #line can only correct numbering on line boundaries.  */
   7 #define one(x) x
   8 #define two(x) x x
   9 #define four(x) two(x) two(x)
  10
  11 int
  12 main(void)
  13 {
  14   char *A;
  15
  16   A = "text";           /* { dg-warning "discards 'const' qualifier" "case zero" } */
  17   A = one("text"        /* { dg-warning "discards 'const' qualifier" "case one" } */
  18           "text")
  19         ;
  20   A = two("text"        /* { dg-warning "discards 'const' qualifier" "case two" } */
  21           "text")
  22         ;
  23   A = four("text"       /* { dg-warning "discards 'const' qualifier" "case four" } */
  24            "text")
  25         ;
  26
  27   return 0;
  28 }