Question

I’ve recently managed to set up SFML for qt creator however upon compilation of the code bellow, I get three strange errors which have nothing to do with my program. I must specify other C++ programs run fine. This is the code:

#include <SFML/System.hpp>
#include <iostream>

int main()
{
    sf::Clock Clock;
    while (Clock.GetElapsedTime() < 5.f)
    {
        std::cout << Clock.GetElapsedTime() << std::endl;
        sf::Sleep(0.5f);
    }

    return 0;
}

The errors are as follows:

f:\SFML-1.6\include\SFML\System\Unicode.hpp:82: error: C2535: 'sf::Unicode::Text::Text(const wchar_t *)' : member function already defined or declared

f:\SFML-1.6\include\SFML\System\Unicode.hpp:87: error: C2535: 'sf::Unicode::Text::Text(const std::wstring &)' : member function already defined or declared

f:\SFML-1.6\include\SFML\System\Unicode.hpp:99: error: C2535: 'sf::Unicode::Text::operator std::wstring(void) const' : member function already defined or declared

Any idea what may be causing this?

EDIT:

I should also mention I never touched the files which give the errors. All I tried was to paste the sample code from the SFML website which resulted in the errors above. I believe I’ve set up SFML correctly.

EDIT2:
I’m using Windows XP SP3, Mingw compiler

Answer 1

I faced the problem a long time ago, the only solution and explanation that worked for me (Copying from another forum post that I originally consulted):

QMake sets the compiler option treat wchar_t as a built-in type to
false, making wchar_t a typedef to unsigned short, which makes
functions overloaded for both unsigned short and wchar_t (like the
sf::Unicode::Text constructor) fail…

I think the only solution, other than modifying SFML sources, is to
change the option “Zc:wchar_t” to “-Zc:wchar_t” in your
\mkspecs\win32-msvc2008\qmake.conf file. And then probably
recompile Qt.

I changed my configuration file and recompiled qt and it has started working as a charm.