21 #ifndef _freetds_macros_h_
22 #define _freetds_macros_h_
24 #ifndef _freetds_config_h_
25 #error should include config.h before
32 #include "tds_sysdep_public.h"
34 #define TDS_ZERO_FREE(x) do {free((x)); (x) = NULL;} while(0)
35 #define TDS_VECTOR_SIZE(x) (sizeof(x)/sizeof(x[0]))
38 #define TDS_OFFSET(type, field) offsetof(type, field)
40 #define TDS_OFFSET(type, field) (((char*)&((type*)0)->field)-((char*)0))
43 #if ENABLE_EXTRA_CHECKS
44 # if defined(__llvm__) || (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)))
45 # define TDS_COMPILE_CHECK(name,check) \
46 _Static_assert(check,#name)
47 # elif defined(__GNUC__) && __GNUC__ >= 2
48 # define TDS_COMPILE_CHECK(name,check) \
49 extern int name[(check)?1:-1] __attribute__ ((unused))
51 # define TDS_COMPILE_CHECK(name,check) \
52 extern int name[(check)?1:-1]
54 # define TDS_EXTRA_CHECK(stmt) stmt
56 # define TDS_COMPILE_CHECK(name,check) \
57 extern int disabled_check_##name
58 # define TDS_EXTRA_CHECK(stmt)
61 #if defined(__GNUC__) && __GNUC__ >= 3
62 # define TDS_LIKELY(x) __builtin_expect(!!(x), 1)
63 # define TDS_UNLIKELY(x) __builtin_expect(!!(x), 0)
65 # define TDS_LIKELY(x) (x)
66 # define TDS_UNLIKELY(x) (x)
69 #if ENABLE_EXTRA_CHECKS && defined(__GNUC__) && __GNUC__ >= 4
70 #define TDS_WUR __attribute__ ((__warn_unused_result__))
75 #define TDS_INT2PTR(i) ((void*)(((char*)0)+((intptr_t)(i))))
76 #define TDS_PTR2INT(p) ((int)(((char*)(p))-((char*)0)))