gcc/testsuite/gcc.dg/c23-digit-separators-1.c

   1 /* Test C23 digit separators.  Valid usages.  */
   2 /* { dg-do run } */
   3 /* { dg-options "-std=c23 -pedantic-errors" } */
   4
   5 _Static_assert (123'45'6 == 123456);
   6 _Static_assert (0'123 == 0123);
   7 _Static_assert (0x1'23 == 0x123);
   8
   9 #define m(x) 0
  10
  11 _Static_assert (m(1'2)+(3'4) == 34);
  12
  13 _Static_assert (0x0'e-0xe == 0);
  14
  15 #define a0 '.' -
  16 #define acat(x) a ## x
  17 _Static_assert (acat (0'.') == 0);
  18
  19 #define c0(x) 0
  20 #define b0 c0 (
  21 #define bcat(x) b ## x
  22 _Static_assert (bcat (0'\u00c0')) == 0);
  23
  24 extern void exit (int);
  25 extern void abort (void);
  26
  27 int
  28 main (void)
  29 {
  30   if (314'159e-0'5f != 3.14159f)
  31     abort ();
  32   exit (0);
  33 }
  34
  35 #line 0'123
  36 _Static_assert (__LINE__ == 123);
  37
  38 #line 4'56'7'8'9
  39 _Static_assert (__LINE__ == 456789);