"tinyxml2.h" and windows.h

[BugIsComing]

Hello Leethomason. when i use the tinyxml2, a error happens if i add the "tinyxml2.h" and windows.h in a cpp.Could you tell me why it happens please?

[Dmitry-Me]

I guess more details of which error happens would be useful.

[BugIsComing]

The error is "XMLDocument is redefinition". I check the error, find that there is a definition of "class XMLDocument" in msxml.h. The requirement is that i must add "tinyxml2.h" and windows.h in a same cpp,how can i deal with it?thank you!

[Dmitry-Me]

Do you have using namespace tinyxml in your code?

[BugIsComing]

yes, i do.

[kleuter]

Then you should not

[BugIsComing]

ok，i'll think some other solutions.

[Dmitry-Me]

IMO the obvious solution is to drop using namespace tinyxml.

[leethomason]

Just so others will know, does it work if you drop the using namespace tinyxml2. It should....but it would be good to confirm there isn't something more sinister going on.

[junmocklee]

It's old issue, but I think it can be helpful.

It works:

#include "tinyxml2.h"
#include <Windows.h>
using namespace tinyxml2;

It does not work;

#include "tinyxml2.h"
using namespace tinyxml2;
#include <Windows.h>

In my case, these also work:

#include "tinyxml2.h"

#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif

using namespace tinyxml2;
#include <Windows.h>

#include "tinyxml2.h"

#ifndef __MSXML_LIBRARY_DEFINED__
#define __MSXML_LIBRARY_DEFINED__
#endif

using namespace tinyxml2;
#include <Windows.h>

But this can be a problem when the project also use msxml.