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"
33 #include <freetds/sysdep_types.h>
35 #define TDS_ZERO_FREE(x) do {free((x)); (x) = NULL;} while(0)
36 #define TDS_VECTOR_SIZE(x) (sizeof(x)/sizeof(x[0]))
39 #define TDS_OFFSET(type, field) offsetof(type, field)
41 #define TDS_OFFSET(type, field) (((char*)&((type*)0)->field)-((char*)0))
44 #if ENABLE_EXTRA_CHECKS
45 # if defined(__llvm__) || (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)))
46 # define TDS_COMPILE_CHECK(name,check) \
47 _Static_assert(check,#name)
48 # elif defined(__GNUC__) && __GNUC__ >= 2
49 # define TDS_COMPILE_CHECK(name,check) \
50 extern int name[(check)?1:-1] __attribute__ ((unused))
52 # define TDS_COMPILE_CHECK(name,check) \
53 extern int name[(check)?1:-1]
55 # define TDS_EXTRA_CHECK(stmt) stmt
57 # define TDS_COMPILE_CHECK(name,check) \
58 extern int disabled_check_##name
59 # define TDS_EXTRA_CHECK(stmt)
62 #if defined(__GNUC__) && __GNUC__ >= 3
63 # define TDS_LIKELY(x) __builtin_expect(!!(x), 1)
64 # define TDS_UNLIKELY(x) __builtin_expect(!!(x), 0)
66 # define TDS_LIKELY(x) (x)
67 # define TDS_UNLIKELY(x) (x)
70 #if ENABLE_EXTRA_CHECKS && defined(__GNUC__) && __GNUC__ >= 4
71 #define TDS_WUR __attribute__ ((__warn_unused_result__))
76 #define TDS_INT2PTR(i) ((void*)(((char*)0)+((TDS_INTPTR)(i))))
77 #define TDS_PTR2INT(p) ((int)(((char*)(p))-((char*)0)))