gcc/testsuite/gcc.dg/wtr-suffix-1.c

   1 /* Test for -Wtraditional warnings on integer constant suffixes.
   2    Note, gcc should omit these warnings in system header files.
   3    Origin: Kaveh R. Ghazi <ghazi@caip.rutgers.edu> 8/24/2000.  */
   4 /* { dg-do compile } */
   5 /* { dg-options "-Wtraditional" } */
   6
   7 void
   8 testfunc ()
   9 {
  10   int i;
  11   double f;
  12
  13   i = 1L;
  14   i = 1l;
  15   i = 1U; /* { dg-warning "traditional C rejects" "numeric constant suffix" } */
  16   i = 1u; /* { dg-warning "traditional C rejects" "numeric constant suffix" } */
  17   f = 1.0;
  18   f = 1.0F; /* { dg-warning "traditional C rejects" "numeric constant suffix" } */
  19   f = 1.0f; /* { dg-warning "traditional C rejects" "numeric constant suffix" } */
  20   f = 1.0L; /* { dg-warning "traditional C rejects" "numeric constant suffix" } */
  21   f = 1.0l; /* { dg-warning "traditional C rejects" "numeric constant suffix" } */
  22
  23 # 24 "sys-header.h" 3
  24 /* We are in system headers now, no -Wtraditional warnings should issue.  */
  25
  26   i = 1L;
  27   i = 1l;
  28   i = 1U;
  29   i = 1u;
  30   f = 1.0;
  31   f = 1.0F;
  32   f = 1.0f;
  33   f = 1.0L;
  34   f = 1.0l;
  35 }