Check for file existence in C++ without creating file

I want to check if a file exists and tried to use the following function

#include 

bool DoesFileExist(const std::string& filename) {
    std::ifstream ifile(filename.c_str());
    return (bool)ifile;
    }

However, it does not seem to work properly, because instead of checking the existence a file is created! What's the problem here?

Note that I'm forced to use C++98 standard and cannot use #include or #include as suggested in the accepted answer here.