Function readFile

src/basicio.cpp:1730–1744

// free functions
#ifdef EXV_ENABLE_FILESYSTEM
DataBuf readFile(const std::string& path) {
  FileIo file(path);
  if (file.open("rb") != 0) {
    throw Error(ErrorCode::kerFileOpenFailed, path, "rb", strError());
  }
  struct stat st;
  if (0 != ::stat(path.c_str(), &st)) {
    throw Error(ErrorCode::kerCallFailed, path, strError(), "::stat");
  }
  DataBuf buf(st.st_size);
  if (file.read(buf.data(), buf.size()) != buf.size()) {
    throw Error(ErrorCode::kerCallFailed, path, strError(), "FileIo::read");
  }
  return buf;
}

size_t writeFile(const DataBuf& buf, const std::string& path) {
  FileIo file(path);