C语言中宏定义的妙用方法

#define IN
#define OUT
#define UAdress volatile unsigned int *
#define Raw_buffer void *
void SetHwiPortsDataReg(IN UAdress Register , IN int value)
{
 _SetHwiPortsDataReg(Register,&value);
}
 
void _Out_Put_value(IN UAdress Register, OUT Raw_buffer buffer)
{
 _Out_Put_value(Register,buffer);
}