Convert const char* to const wchar_t*

Question

I am trying to create a program with Irrlicht that loads certain things from a configuration file written in Lua, one of which is the window title. However, the lua_tostri

Answer 1

You can use mbstowcs:

    wchar_t WBuf[100];
    mbstowcs(WBuf,lua_tostring( /*...*/ ),99);

or more safe:

    const char* sz = lua_tostring(/*...*/);
    std::vector vec;
    size_t len = strlen(sz);
    vec.resize(len+1);
    mbstowcs(&vec[0],sz,len);
    const wchar_t* wsz = &vec[0];