gcc/testsuite/gcc.dg/c99-stdint-3.c

   1 /* Verify that pairs of types in <stdint.h> are corresponding types
   2    (requires no pointer sign warnings, so separate from
   3    c99-stdint-1.c).  */
   4 /* { dg-do compile } */
   5 /* { dg-options "-std=iso9899:1999 -fhosted" } */
   6
   7 #include <stdint.h>
   8
   9 #define CHECK_CORRESPONDING(TYPE1, TYPE2) \
  10   do { TYPE1 a; TYPE2 *b = &a; TYPE2 c; TYPE1 *d = &c; } while (0)
  11
  12 void
  13 check_corresponding (void)
  14 {
  15 #if defined(INT8_MAX) && defined(UINT8_MAX)
  16   CHECK_CORRESPONDING(int8_t, uint8_t);
  17 #endif
  18 #if defined(INT16_MAX) && defined(UINT16_MAX)
  19   CHECK_CORRESPONDING(int16_t, uint16_t);
  20 #endif
  21 #if defined(INT32_MAX) && defined(UINT32_MAX)
  22   CHECK_CORRESPONDING(int32_t, uint32_t);
  23 #endif
  24 #if defined(INT64_MAX) && defined(UINT64_MAX)
  25   CHECK_CORRESPONDING(int64_t, uint64_t);
  26 #endif
  27   CHECK_CORRESPONDING(int_least8_t, uint_least8_t);
  28   CHECK_CORRESPONDING(int_least16_t, uint_least16_t);
  29   CHECK_CORRESPONDING(int_least32_t, uint_least32_t);
  30   CHECK_CORRESPONDING(int_least64_t, uint_least64_t);
  31   CHECK_CORRESPONDING(int_fast8_t, uint_fast8_t);
  32   CHECK_CORRESPONDING(int_fast16_t, uint_fast16_t);
  33   CHECK_CORRESPONDING(int_fast32_t, uint_fast32_t);
  34   CHECK_CORRESPONDING(int_fast64_t, uint_fast64_t);
  35 #if defined(INTPTR_MAX) && defined(UINTPTR_MAX)
  36   CHECK_CORRESPONDING(intptr_t, uintptr_t);
  37 #endif
  38   CHECK_CORRESPONDING(intmax_t, uintmax_t);
  39 }