Function AppendEnvVarFilename

cpp/src/arrow/io/hdfs_internal.cc:86–92

}

void AppendEnvVarFilename(const char* var_name,
                          std::vector<PlatformFilename>* filenames) {
  auto maybe_env_var = GetEnvVarNative(var_name);
  if (maybe_env_var.ok()) {
    filenames->emplace_back(std::move(*maybe_env_var));
  }
}

void AppendEnvVarFilename(const char* var_name, const char* suffix,
                          std::vector<PlatformFilename>* filenames) {