（简单）头文件问题

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问题描述

大家好，

我有以下内容：

------------文件常量。 h ---------

#ifndef constants_

#define constants_

const int FOO = 1;

const int BAR = 2;

char * NAME =" something";

const int ARGCOUNT = 2;

#endif

----------- file other.h -------------

#ifndef other_

#define other_

#include" Constants.h"

class其他{

public：

void crap（）;

};

#endif

----------- file other.cpp ----------

#include " Other.h"

void其他:: crap（）{

//做东西的事情

}

----------文件crap.cpp -----------

#include< iostream>

#include" constants.h"

#include" other.h"

using namespace st d;

void doStuff（char * arg）{

cout<< arg was << arg<<结束;

}

int main（int argc，char * argv []）{

if（argc< ARGCOUNT ）

doStuff（NAME）;

else

doStuff（argv [1]）;

}

------------------------------------

当我编译时，编译器抱怨我有多个定义

_NAME''

它对我定义的其他变量没有问题Constants.h，所以

为什么NAME出现问题？

这似乎与char *有关，但我无法想象出什么

或为什么.....

感谢您的帮助

Michael

Hi All,

I have the following:

------------ file constants.h---------
#ifndef constants_
#define constants_

const int FOO = 1;
const int BAR = 2;
char* NAME = "something";
const int ARGCOUNT = 2;

#endif

----------- file other.h -------------
#ifndef other_
#define other_

#include "Constants.h"

class Other {
public:
void crap();
};

#endif

----------- file other.cpp ----------
#include "Other.h"

void Other::crap(){
//stuff to do stuff
}
---------- file crap.cpp -----------
#include <iostream>
#include "constants.h"
#include "other.h"

using namespace std;

void doStuff(char* arg){
cout << "arg was " << arg << endl;
}

int main(int argc, char* argv[]){
if(argc < ARGCOUNT)
doStuff(NAME);
else
doStuff(argv[1]);
}
------------------------------------

When I compile, the compiler complains that I have ''multiple definition of
_NAME''
It has no problem with the other variables I have defined in Constants.h, so
why the problem with NAME?

It seems to be something to do with the char*, but I can''t figure out what
or why.....

Thanks for your help

Michael

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