ccs编译器，用typedef时出现警告

只看该作者 · 2016-8-12 14:47

用ccs，程序里面有一段
#ifndef TYPES_H
#define TYPES_H

//----------------------------------------------------------------------------
// datatypes
//----------------------------------------------------------------------------
typedef unsigned char uint8_t;
typedef unsigned short  uint16_t;
typedef unsigned int uint32_t;
typedef unsigned long ulong_t;
typedef signed char    int8_t;
typedef signed short int16_t;
typedef signed int    int32_t;
typedef signed long    long_t;

typedef enum
{
false = 0,
true = 1
}bool_e;

#endif
总提示我警告
#303-D typedef name has already been declared(with same type)
我理解这个警告的意思是这个类型已经被定义过了，可是这程序里不是有#ifndef #endif吗？？
求大神告知