| // RUN: %clang_cc1 -ffreestanding -fsyntax-only -verify %s |
| // RUN: %clang_cc1 -fno-signed-char -ffreestanding -fsyntax-only -verify %s |
| // RUN: %clang_cc1 -std=c++11 -ffreestanding -fsyntax-only -verify %s |
| // RUN: %clang_cc1 -std=c17 -ffreestanding -fsyntax-only -verify -x c %s |
| // RUN: %clang_cc1 -std=c2x -ffreestanding -fsyntax-only -verify -x c %s |
| // expected-no-diagnostics |
| |
| #include <limits.h> |
| |
| _Static_assert(SCHAR_MAX == -(SCHAR_MIN+1), ""); |
| _Static_assert(SHRT_MAX == -(SHRT_MIN+1), ""); |
| _Static_assert(INT_MAX == -(INT_MIN+1), ""); |
| _Static_assert(LONG_MAX == -(LONG_MIN+1L), ""); |
| |
| _Static_assert(SCHAR_MAX == UCHAR_MAX/2, ""); |
| _Static_assert(SHRT_MAX == USHRT_MAX/2, ""); |
| _Static_assert(INT_MAX == UINT_MAX/2, ""); |
| _Static_assert(LONG_MAX == ULONG_MAX/2, ""); |
| |
| _Static_assert(SCHAR_MIN == -SCHAR_MAX-1, ""); |
| _Static_assert(SHRT_MIN == -SHRT_MAX-1, ""); |
| _Static_assert(INT_MIN == -INT_MAX-1, ""); |
| _Static_assert(LONG_MIN == -LONG_MAX-1L, ""); |
| |
| _Static_assert(UCHAR_MAX == (unsigned char)~0ULL, ""); |
| _Static_assert(USHRT_MAX == (unsigned short)~0ULL, ""); |
| _Static_assert(UINT_MAX == (unsigned int)~0ULL, ""); |
| _Static_assert(ULONG_MAX == (unsigned long)~0ULL, ""); |
| |
| _Static_assert(MB_LEN_MAX >= 1, ""); |
| |
| _Static_assert(CHAR_BIT >= 8, ""); |
| |
| _Static_assert(CHAR_MIN == (((char)-1 < (char)0) ? -CHAR_MAX-1 : 0), ""); |
| _Static_assert(CHAR_MAX == (((char)-1 < (char)0) ? -(CHAR_MIN+1) : (char)~0ULL), ""); |
| |
| #if __STDC_VERSION__ >= 199901 || __cplusplus >= 201103L |
| _Static_assert(LLONG_MAX == -(LLONG_MIN+1LL), ""); |
| _Static_assert(LLONG_MIN == -LLONG_MAX-1LL, ""); |
| _Static_assert(ULLONG_MAX == (unsigned long long)~0ULL, ""); |
| #else |
| int LLONG_MIN, LLONG_MAX, ULLONG_MAX; // Not defined. |
| #endif |
| |
| /* FIXME: This is using the placeholder dates Clang produces for these macros |
| in C2x mode; switch to the correct values once they've been published. */ |
| #if __STDC_VERSION__ >= 202000L |
| /* Validate the standard requirements. */ |
| _Static_assert(BOOL_WIDTH >= 1); |
| |
| _Static_assert(CHAR_WIDTH == CHAR_BIT); |
| _Static_assert(CHAR_WIDTH / CHAR_BIT == sizeof(char)); |
| _Static_assert(SCHAR_WIDTH == CHAR_BIT); |
| _Static_assert(SCHAR_WIDTH / CHAR_BIT == sizeof(signed char)); |
| _Static_assert(UCHAR_WIDTH == CHAR_BIT); |
| _Static_assert(UCHAR_WIDTH / CHAR_BIT == sizeof(unsigned char)); |
| |
| _Static_assert(USHRT_WIDTH >= 16); |
| _Static_assert(USHRT_WIDTH / CHAR_BIT == sizeof(unsigned short)); |
| _Static_assert(SHRT_WIDTH == USHRT_WIDTH); |
| _Static_assert(SHRT_WIDTH / CHAR_BIT == sizeof(signed short)); |
| |
| _Static_assert(UINT_WIDTH >= 16); |
| _Static_assert(UINT_WIDTH / CHAR_BIT == sizeof(unsigned int)); |
| _Static_assert(INT_WIDTH == UINT_WIDTH); |
| _Static_assert(INT_WIDTH / CHAR_BIT == sizeof(signed int)); |
| |
| _Static_assert(ULONG_WIDTH >= 32); |
| _Static_assert(ULONG_WIDTH / CHAR_BIT == sizeof(unsigned long)); |
| _Static_assert(LONG_WIDTH == ULONG_WIDTH); |
| _Static_assert(LONG_WIDTH / CHAR_BIT == sizeof(signed long)); |
| |
| _Static_assert(ULLONG_WIDTH >= 64); |
| _Static_assert(ULLONG_WIDTH / CHAR_BIT == sizeof(unsigned long long)); |
| _Static_assert(LLONG_WIDTH == ULLONG_WIDTH); |
| _Static_assert(LLONG_WIDTH / CHAR_BIT == sizeof(signed long long)); |
| |
| _Static_assert(BITINT_MAXWIDTH >= ULLONG_WIDTH); |
| #else |
| /* None of these are defined. */ |
| int BOOL_WIDTH, CHAR_WIDTH, SCHAR_WIDTH, UCHAR_WIDTH, USHRT_WIDTH, SHRT_WIDTH, |
| UINT_WIDTH, INT_WIDTH, ULONG_WIDTH, LONG_WIDTH, ULLONG_WIDTH, LLONG_WIDTH, |
| BITINT_MAXWIDTH; |
| #endif |