validation/preprocessor/predef.c

   1 #define BITS(T)         (sizeof(T) * 8)
   2 #define SIGN_BIT(T)     (1ULL << (BITS(T) - 1))
   3 #define SMASK(T)        (SIGN_BIT(T) - 1)
   4 #define UMASK(T)        (SIGN_BIT(T) | SMASK(T))
   5
   6 int test(void);
   7 int test(void)
   8 {
   9 #define TEST_BIT(X, T)  if (__ ## X ## _BIT__  != BITS(T)) return 1
  10         TEST_BIT(CHAR, char);
  11
  12 #define TEST_MAX(X, M)  if (__ ## X ## _MAX__ != M) return 1
  13 #define TEST_SMAX(X, T) TEST_MAX(X, SMASK(T))
  14 #define TEST_UMAX(X, T) TEST_MAX(X, UMASK(T))
  15         TEST_SMAX(SCHAR, signed char);
  16         TEST_SMAX(SHRT, short);
  17         TEST_SMAX(INT, int);
  18         TEST_SMAX(LONG, long);
  19         TEST_SMAX(LONG_LONG, long long);
  20         TEST_MAX( INT8,  0x7f);
  21         TEST_MAX(UINT8,  0xffU);
  22         TEST_MAX( INT16, 0x7fff);
  23         TEST_MAX(UINT16, 0xffffU);
  24         TEST_MAX( INT32, 0x7fffffff);
  25         TEST_MAX(UINT32, 0xffffffffU);
  26         TEST_MAX( INT64, 0x7fffffffffffffffLL);
  27         TEST_MAX(UINT64, 0xffffffffffffffffULL);
  28         TEST_SMAX(INTMAX, __INTMAX_TYPE__);
  29         TEST_UMAX(UINTMAX, __UINTMAX_TYPE__);
  30         TEST_SMAX(INTPTR, __INTPTR_TYPE__);
  31         TEST_UMAX(UINTPTR, __UINTPTR_TYPE__);
  32         TEST_SMAX(PTRDIFF, __PTRDIFF_TYPE__);
  33         TEST_UMAX(SIZE, __SIZE_TYPE__);
  34
  35 #define TEST_SIZEOF(X, T) if (__SIZEOF_ ## X ## __ != sizeof(T)) return 1
  36         TEST_SIZEOF(SHORT, short);
  37         TEST_SIZEOF(INT, int);
  38         TEST_SIZEOF(LONG, long);
  39         TEST_SIZEOF(LONG_LONG, long long);
  40 #ifdef __SIZEOF_INT128__
  41         TEST_SIZEOF(INT128, __int128);
  42 #endif
  43         TEST_SIZEOF(PTRDIFF_T, __PTRDIFF_TYPE__);
  44         TEST_SIZEOF(SIZE_T, __SIZE_TYPE__);
  45         TEST_SIZEOF(POINTER, void*);
  46         TEST_SIZEOF(FLOAT, float);
  47         TEST_SIZEOF(DOUBLE, double);
  48         TEST_SIZEOF(LONG_DOUBLE, long double);
  49
  50         return 0;
  51 }
  52
  53 /*
  54  * check-name: predefined macros: __SIZEOF_<type>__, ...
  55  * check-command: test-linearize -Wno-decl $file
  56  * check-output-ignore
  57  *
  58  * check-output-contains: ret\\..*\\$0
  59  */