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#ifndef __TUNNEL_MACRO_H__
#define __TUNNEL_MACRO_H__
#include <stdlib.h>
#include <string.h>
#define _new(t) memset(malloc(sizeof(t)), 0, sizeof(t))
#define _copy(p, ...) _copy_(p, ## __VA_ARGS__, sizeof(*p))
#define _copy_(p, n, ...) memcpy(malloc(n), p, n)
#define __unused __attribute__((unused))
#define __cleanup(f) __attribute__((cleanup(f)))
#define CAT(a, b) CAT_(a, b)
#define CAT_(a, b) a ## b
#define UNIQ(name) CAT(name, __LINE__)
#define defer \
auto void UNIQ(defer_func)(int *); \
int UNIQ(defer_var) __cleanup(UNIQ(defer_func)); \
void UNIQ(defer_func)(int *p __unused)
#endif
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