(C++) boost::filesystem::copy_file

boost::filesystem::copy_file is a Boost.Filesystem file I/O function to copy a file.


#include <cassert>

#include <boost/filesystem.hpp>



int main()

{

  const std::string from = "from.txt";

  const std::string to = "to.txt";

  assert(boost::filesystem::is_regular_file(from)

    && "Assume file is present");

  boost::filesystem::copy_file(from,to);

}

Note for Qt Creator users

Add the following line to your project file (to prevent the link error undefined reference to 'boost::system::get_system_category()'):


LIBS += -lboost_system -lboost_filesystem

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