C
extern int my_printf (void *my_object, const char *my_format, ...) __attribute__ ((format (printf, 2, 3)));
volatile
compile time asserts
#define COMPILE_TIME_ASSERT(pred) switch(0){case 0:case pred:;} // NOLINT
#ifndef CTASSERT /* Allow lint to override */
#define CTASSERT(x) _CTASSERT(x, __LINE__)
#define _CTASSERT(x, y) __CTASSERT(x, y)
#define __CTASSERT(x, y) typedef char __assert ## y[(x) ? 1 : -1]
#endif
MAX_VALUE
#define IS_TYPE_SIGNED(a) ((a-1) < 0)
#define MAX_VALUE_UNSIGNED(a) (((unsigned long long)1 << \
(sizeof(a) * CHAR_BIT)) - 1)
#define MAX_VALUE_SIGNED(a) (MAX_VALUE_UNSIGNED(a) >> 1)
#define MAX_VALUE(a) (IS_TYPE_SIGNED(a) ? \
MAX_VALUE_SIGNED(a) : MAX_VALUE_UNSIGNED(a))
sizeof
#define member_size(type, member) sizeof(((type *)0)->member)