diff options
| author | Michael Forney <mforney@mforney.org> | 2020-05-30 01:23:59 -0700 |
|---|---|---|
| committer | David Oberhollenzer <goliath@infraroot.at> | 2021-05-16 17:25:02 +0200 |
| commit | 91d628c5cf067432bc78b728a0bf4f56aee3e407 (patch) | |
| tree | ca003be61164b5f27a7a820a5891abc2b5ff04b0 /include/compat.h | |
| parent | f64e2a3b0b701249b02adf2b389bae8576a3441b (diff) | |
Use *_MAX to remove need for configure-time type size checks
Diffstat (limited to 'include/compat.h')
| -rw-r--r-- | include/compat.h | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/include/compat.h b/include/compat.h index 8a2522e..e82f2ad 100644 --- a/include/compat.h +++ b/include/compat.h @@ -10,17 +10,19 @@ #include "sqfs/predef.h" #include "config.h" +#include <limits.h> + #if defined(__GNUC__) && __GNUC__ >= 5 # define SZ_ADD_OV __builtin_add_overflow # define SZ_MUL_OV __builtin_mul_overflow #elif defined(__clang__) && defined(__GNUC__) && __GNUC__ < 5 -# if SIZEOF_SIZE_T <= SIZEOF_INT +# if SIZE_MAX <= UINT_MAX # define SZ_ADD_OV __builtin_uadd_overflow # define SZ_MUL_OV __builtin_umul_overflow -# elif SIZEOF_SIZE_T == SIZEOF_LONG +# elif SIZE_MAX == ULONG_MAX # define SZ_ADD_OV __builtin_uaddl_overflow # define SZ_MUL_OV __builtin_umull_overflow -# elif SIZEOF_SIZE_T == SIZEOF_LONG_LONG +# elif SIZE_MAX == ULLONG_MAX # define SZ_ADD_OV __builtin_uaddll_overflow # define SZ_MUL_OV __builtin_umulll_overflow # else @@ -51,11 +53,11 @@ static inline int _sz_mul_overflow(size_t a, size_t b, size_t *res) # define PRI_U32 "%" PRIu32 #endif -#if SIZEOF_SIZE_T <= SIZEOF_INT +#if SIZE_MAX <= UINT_MAX # define PRI_SZ "%u" -#elif SIZEOF_SIZE_T == SIZEOF_LONG +#elif SIZE_MAX == ULONG_MAX # define PRI_SZ "%lu" -#elif defined(_WIN32) && SIZEOF_SIZE_T == 8 +#elif defined(_WIN32) && SIZE_MAX == UINT64_MAX # define PRI_SZ "%I64u" #else # error Cannot figure out propper printf specifier for size_t |