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 TEST_SIZEOF(INT128, __int128); 41 TEST_SIZEOF(PTRDIFF_T, __PTRDIFF_TYPE__); 42 TEST_SIZEOF(SIZE_T, __SIZE_TYPE__); 43 TEST_SIZEOF(POINTER, void*); 44 TEST_SIZEOF(FLOAT, float); 45 TEST_SIZEOF(DOUBLE, double); 46 TEST_SIZEOF(LONG_DOUBLE, long double); 47 48 return 0; 49 } 50 51 /* 52 * check-name: predefined macros: __SIZEOF_<type>__, ... 53 * check-command: test-linearize -Wno-decl $file 54 * check-output-ignore 55 * 56 * check-output-contains: ret\\..*\\$0 57 */ 58