void level3(ServiceProvider const* sp)
{
    sp->get<ILogger>()->log("level 3!");
}
void level2(ServiceProvider const* sp)
{
    level3(sp);
}
void level1(ServiceProvider const* sp)
{
    level2(sp);
}
int main()
{
    logger log;
    log.initialize(bla-bla-bla);

    ServiceProvider sp;
    sp.add<ILogger>(&log);

    level1(&sp);
}

void level3(ServiceProvider const* sp)
{
    sp->get<ILogger>()->log("level 3!");
}
void level2(ServiceProvider const* baseSp, bla-bla-bla)
{
    loggerWithSomeInfo log;
    log.initialize(baseSp->get<ILogger>(), bla-bla-bla);

    ServiceProvider sp(baseSp);
    sp.add<ILogger>(&log);

    level3(&sp);
}
void level1(ServiceProvider const* sp)
{
...
    level2(sp, bla-bla-bla);
...
}
int main()
{
    logger log;
    log.initialize(bla-bla-bla);

        ServiceProvider sp;
        sp.add<ILogger>(&log);

    level1(&sp);
}

void level3()
{
    log.log("level 3!");
}
void level2()
{
    level3();
}
void level1()
{
    level2();
}

logger log;

int main1(logger pLog)
{
    log = pLog;
    level1();
}

int main()
{
    logger log;

    log.initialize(bla-bla-bla);
        
    main1(log);
}

#ifdef DLL_EXPORTS
#define DLL_API __declspec(dllexport)
#else
#define DLL_API __declspec(dllimport)
#endif

DLL_API void iddqdPrint();
DLL_API extern int iddqd;

#include <iostream>
#include "dll.h"

DLL_API int iddqd = 0;
DLL_API void iddqdPrint()
{
    std::cout << iddqd << "\n";
}

#include "dll.h"
int main()
{
    for (int i = 0; i < 1000000; ++i)
    {
        iddqd = i * i;
        iddqdPrint();
    }
    return 0;
}

class CardOneSinglton
{
};
CardOneSinglton cardOneInstance;

class CardTwoSinglton
{
};
CardTwoSinglton cardTwoInstance;
...