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The header <boost/core/fclose_deleter.hpp>
defines the boost::fclose_deleter
function object, which can
be used as a deleter with smart pointers such as unique_ptr
or shared_ptr
pointing to
std::FILE
. structures returned by std::fopen
calls. The deleter calls std::fclose
on the passed pointer, causing the file stream to be flushed and closed.
std::unique_ptr< std::FILE, boost::fclose_deleter > make_file(const char* filename, const char* open_mode) { return { std::fopen(filename, open_mode) }; }