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21#ifndef _freetds_macros_h_
22#define _freetds_macros_h_
24#ifndef _freetds_config_h_
25#error should include config.h before
32#define TDS_ZERO_FREE(x) do {free((x)); (x) = NULL;} while(0)
33#define TDS_VECTOR_SIZE(x) (sizeof(x)/sizeof(x[0]))
36#define TDS_OFFSET(type, field) offsetof(type, field)
38#define TDS_OFFSET(type, field) (((char*)&((type*)0)->field)-((char*)0))
41#if ENABLE_EXTRA_CHECKS
42# if defined(__llvm__) || (defined(__GNUC__) && (__GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)))
43# define TDS_COMPILE_CHECK(name,check) \
44 _Static_assert(check,#name)
45# elif defined(__GNUC__) && __GNUC__ >= 2
46# define TDS_COMPILE_CHECK(name,check) \
47 extern int name[(check)?1:-1] __attribute__ ((unused))
49# define TDS_COMPILE_CHECK(name,check) \
50 extern int name[(check)?1:-1]
52# define TDS_EXTRA_CHECK(stmt) stmt
54# define TDS_COMPILE_CHECK(name,check) \
55 extern int disabled_check_##name
56# define TDS_EXTRA_CHECK(stmt)
59#if defined(__GNUC__) && __GNUC__ >= 3
60# define TDS_LIKELY(x) __builtin_expect(!!(x), 1)
61# define TDS_UNLIKELY(x) __builtin_expect(!!(x), 0)
63# define TDS_LIKELY(x) (x)
64# define TDS_UNLIKELY(x) (x)
67#if ENABLE_EXTRA_CHECKS && defined(__GNUC__) && __GNUC__ >= 4
68#define TDS_WUR __attribute__ ((__warn_unused_result__))