Copy a file in a sane, safe and efficient way

Question

I search for a good way to copy a file (binary or text). I\'ve written several samples, everyone works. But I want hear the opinion of seasoned programmers.

I missin

Answer 1

Copy a file in a sane way:

#include 

int main()
{
    std::ifstream  src("from.ogv", std::ios::binary);
    std::ofstream  dst("to.ogv",   std::ios::binary);

    dst << src.rdbuf();
}

This is so simple and intuitive to read it is worth the extra cost. If we were doing it a lot, better to fall back on OS calls to the file system. I am sure boost has a copy file method in its filesystem class.

There is a C method for interacting with the file system:

#include 

int
copyfile(const char *from, const char *to, copyfile_state_t state, copyfile_flags_t flags);