Function file_open

example/print_file/print_file_exceptions.cpp:160–166

Open a file for reading.

// Open a file for reading.
std::shared_ptr<FILE> file_open( char const * file_name )
{
    if( FILE * f = fopen(file_name, "rb") )
        return std::shared_ptr<FILE>(f, &fclose);
    else
        leaf::throw_exception(open_error, leaf::e_errno{errno});
}


// Return the size of the file.