examples/helloworld-complex/src/main.cpp


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#include "foo.h"

#ifdef HAS_SPECIAL_FEATURE
#include "specialfeature.h"
#endif

#include <stdio.h>

#ifndef HAVE_MAIN_CPP
#   error missing define HAVE_MAIN_CPP
#endif

#ifndef SOMETHING
#   error missing define SOMETHING
#endif

int main()
{
    someUsefulFunction();
#ifdef _DEBUG
    puts("Hello World! (debug version)");
#else
    puts("Hello World! (release version)");
#endif
#ifdef HAS_SPECIAL_FEATURE
    bragAboutSpecialFeature();
#endif
}