#ifndef _STDDEF_H #define _STDDEF_H typedef __SIZE_TYPE__ size_t; typedef __PTRDIFF_TYPE__ ssize_t; typedef __WCHAR_TYPE__ wchar_t; typedef __PTRDIFF_TYPE__ ptrdiff_t; typedef __PTRDIFF_TYPE__ intptr_t; typedef __SIZE_TYPE__ uintptr_t; #ifndef __int8_t_defined #define __int8_t_defined typedef signed char int8_t; typedef signed short int int16_t; typedef signed int int32_t; typedef signed long long int int64_t; typedef unsigned char uint8_t; typedef unsigned short int uint16_t; typedef unsigned int uint32_t; typedef unsigned long long int uint64_t; #endif #define NULL ((void*)0) #define offsetof(type, field) ((size_t)&((type *)0)->field) void *alloca(size_t size); #endif