C++ (Cpp) iterator示例

示例#1

文件： CompilationDatabase.cpp 项目： LegalizeAdulthood/clang

std::unique_ptr<CompilationDatabase>
CompilationDatabase::loadFromDirectory(StringRef BuildDirectory,
                                       std::string &ErrorMessage) {
  llvm::raw_string_ostream ErrorStream(ErrorMessage);
  for (CompilationDatabasePluginRegistry::iterator
       It = CompilationDatabasePluginRegistry::begin(),
       Ie = CompilationDatabasePluginRegistry::end();
       It != Ie; ++It) {
    std::string DatabaseErrorMessage;
    std::unique_ptr<CompilationDatabasePlugin> Plugin(It->instantiate());
    if (std::unique_ptr<CompilationDatabase> DB =
            Plugin->loadFromDirectory(BuildDirectory, DatabaseErrorMessage))
      return DB;
    ErrorStream << It->getName() << ": " << DatabaseErrorMessage << "\n";
  }
  return nullptr;
}

示例#2

文件： CompilationDatabase.cpp 项目： pkesist/clang

CompilationDatabase *
CompilationDatabase::loadFromDirectory(StringRef BuildDirectory,
                                       std::string &ErrorMessage) {
  std::stringstream ErrorStream;
  for (CompilationDatabasePluginRegistry::iterator
       It = CompilationDatabasePluginRegistry::begin(),
       Ie = CompilationDatabasePluginRegistry::end();
       It != Ie; ++It) {
    std::string DatabaseErrorMessage;
    std::unique_ptr<CompilationDatabasePlugin> Plugin(It->instantiate());
    if (CompilationDatabase *DB =
        Plugin->loadFromDirectory(BuildDirectory, DatabaseErrorMessage))
      return DB;
    else
      ErrorStream << It->getName() << ": " << DatabaseErrorMessage << "\n";
  }
  ErrorMessage = ErrorStream.str();
  return NULL;
}