Compilation errors with RapidXML

Question

Hi,

I am novice to rapidXML but first impresion was not positive, I made simple Visual Studio 6 C++ Hello World Application and added RapidXML hpp files to project and in main.cpp I put:

#include "stdafx.h"

#include < iostream >
#include < string >
#include "rapidxml.hpp"

using namespace std;
using namespace rapidxml;

int main ( )
{
    char x[] = "<Something>Text</Something>\0" ; //<<<< funktioniert, aber mit '*' nicht
    xml_document<> doc ;
    doc.parse<0>(x) ;
    cout << "Name of my first node is: " << doc.first_node()->name() << endl ;
    xml_node<>* node = doc.first_node("Something") ;
    cout << "Node 'Something' has value: " << node->value() << endl ;
} 

And it does not compile, any help ? Is RapidXML possible to run with Visual Studio 6 ? Error I am getting are:

--------------------Configuration: aaa - Win32 Debug--------------------
Compiling...
rapidxml.cpp
c:\Parser\rapidxml.cpp(310) : error C2039: 'size_t' : is not a member of 'std'
c:\Parser\rapidxml.cpp(320) : error C2039: 'size_t' : is not a member of 'std'
c:\Parser\rapidxml.cpp(320) : error C2039: 'size_t' : is not a member of 'std'
c:\Parser\rapidxml.cpp(385) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(639) : see reference to class template instantiation 'rapidxml::memory_pool<Ch>' being compiled
c:\Parser\rapidxml.cpp(417) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(639) : see reference to class template instantiation 'rapidxml::memory_pool<Ch>' being compiled
c:\Parser\rapidxml.cpp(417) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(639) : see reference to class template instantiation 'rapidxml::memory_pool<Ch>' being compiled
c:\Parser\rapidxml.cpp(448) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(639) : see reference to class template instantiation 'rapidxml::memory_pool<Ch>' being compiled
c:\Parser\rapidxml.cpp(448) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(639) : see reference to class template instantiation 'rapidxml::memory_pool<Ch>' being compiled
c:\Parser\rapidxml.cpp(476) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(639) : see reference to class template instantiation 'rapidxml::memory_pool<Ch>' being compiled
c:\Parser\rapidxml.cpp(579) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(639) : see reference to class template instantiation 'rapidxml::memory_pool<Ch>' being compiled
c:\Parser\rapidxml.cpp(599) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(639) : see reference to class template instantiation 'rapidxml::memory_pool<Ch>' being compiled
c:\Parser\rapidxml.cpp(681) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(790) : see reference to class template instantiation 'rapidxml::xml_base<Ch>' being compiled
c:\Parser\rapidxml.cpp(700) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(790) : see reference to class template instantiation 'rapidxml::xml_base<Ch>' being compiled
c:\Parser\rapidxml.cpp(721) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(790) : see reference to class template instantiation 'rapidxml::xml_base<Ch>' being compiled
c:\Parser\rapidxml.cpp(751) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(790) : see reference to class template instantiation 'rapidxml::xml_base<Ch>' being compiled
c:\Parser\rapidxml.cpp(786) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(790) : see reference to class template instantiation 'rapidxml::xml_base<Ch>' being compiled
c:\Parser\rapidxml.cpp(787) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(790) : see reference to class template instantiation 'rapidxml::xml_base<Ch>' being compiled
c:\Parser\rapidxml.cpp(836) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(876) : see reference to class template instantiation 'rapidxml::xml_attribute<Ch>' being compiled
c:\Parser\rapidxml.cpp(856) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(876) : see reference to class template instantiation 'rapidxml::xml_attribute<Ch>' being compiled
c:\Parser\rapidxml.cpp(936) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(1345) : see reference to class template instantiation 'rapidxml::xml_node<Ch>' being compiled
c:\Parser\rapidxml.cpp(958) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(1345) : see reference to class template instantiation 'rapidxml::xml_node<Ch>' being compiled
c:\Parser\rapidxml.cpp(981) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(1345) : see reference to class template instantiation 'rapidxml::xml_node<Ch>' being compiled
c:\Parser\rapidxml.cpp(1004) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(1345) : see reference to class template instantiation 'rapidxml::xml_node<Ch>' being compiled
c:\Parser\rapidxml.cpp(1025) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(1345) : see reference to class template instantiation 'rapidxml::xml_node<Ch>' being compiled
c:\Parser\rapidxml.cpp(1045) : error C2039: 'size_t' : is not a member of 'std'
        c:\Parser\rapidxml.cpp(1345) : see reference to class template instantiation 'rapidxml::xml_node<Ch>' being compiled
Error executing cl.exe.

rapidxml.obj - 25 error(s), 0 warning(s)

Answer 1

Visual C++ 6 dates back to before the C++ language was standardised. If you are having problems compiling even vaguely modern code with it, the chances are the problem lies with the compiler and not the code. Such problems cannot usually be fixed - you probably need to upgrade to a more modern compiler.

Answer 2

It's not technically legal, but could you try inserting the following code above your #include "rapidxml.hpp" line:

namespace std
{
    typedef unsigned long size_t;
}

This will (illegally) inject size_t into the std namespace before RapidXML tries to use it. If that actually compiles, then you can search through the VC6 header files to find out what the real definition of size_t is and replace unsigned long above.

Answer 3

I just noticed your errors relate to rapidxml.cpp. Where's that file come from??

RapidXML is a header-only library. There is no rapidxml.cpp, and rapidxml.hpp cannot be compiled on it's own - you just include it in your own files (like in main.cpp above) to use it.

I know nothing about VC++, but try removing "rapidxml" from the VC project and rebuild.