好用的C语言代码

• 全局定义的变量类型定义

#ifndef __TYPEDEF__
typedef signed char         int8_t;
typedef unsigned char       uint8_t;
typedef signed short        int16_t;
typedef unsigned short      uint16_t;
typedef signed long         int32_t;
typedef unsigned long       uint32_t;
typedef unsigned short      MD_STATUS;
#define __TYPEDEF__
#endif