Method BufferedFile

ext/src/cppformat/posix.cc:80–84

}

fmt::BufferedFile::BufferedFile(fmt::StringRef filename, fmt::StringRef mode) {
  FMT_RETRY_VAL(file_, FMT_SYSTEM(fopen(filename.c_str(), mode.c_str())), 0);
  if (!file_)
    throw SystemError(errno, "cannot open file {}", filename);
}

void fmt::BufferedFile::close() {
  if (!file_)