mirror of https://gitee.com/bigwinds/arangodb
73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief dynamic_cast or exception
|
|
///
|
|
/// @file
|
|
///
|
|
/// DISCLAIMER
|
|
///
|
|
/// Copyright 2004-2013 triAGENS GmbH, Cologne, Germany
|
|
///
|
|
/// Licensed under the Apache License, Version 2.0 (the "License");
|
|
/// you may not use this file except in compliance with the License.
|
|
/// You may obtain a copy of the License at
|
|
///
|
|
/// http://www.apache.org/licenses/LICENSE-2.0
|
|
///
|
|
/// Unless required by applicable law or agreed to in writing, software
|
|
/// distributed under the License is distributed on an "AS IS" BASIS,
|
|
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
/// See the License for the specific language governing permissions and
|
|
/// limitations under the License.
|
|
///
|
|
/// Copyright holder is triAGENS GmbH, Cologne, Germany
|
|
///
|
|
/// @author Dr. Frank Celler
|
|
/// @author Copyright 2009-2013, triAGENS GmbH, Cologne, Germany
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef TRIAGENS_BASICS_SAFE_CAST_H
|
|
#define TRIAGENS_BASICS_SAFE_CAST_H 1
|
|
|
|
#include "Basics/Common.h"
|
|
|
|
#include "Basics/Exceptions.h"
|
|
|
|
namespace triagens {
|
|
namespace basics {
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- public functions
|
|
// -----------------------------------------------------------------------------
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @addtogroup Utilities
|
|
/// @{
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief dynamic_cast or exception
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
template<typename T, typename F> T safe_cast (F from) {
|
|
T to = dynamic_cast<T>(from);
|
|
|
|
if (to == 0) {
|
|
THROW_INTERNAL_ERROR("illegal dynamic cast");
|
|
}
|
|
|
|
return to;
|
|
}
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @}
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#endif
|
|
|
|
// Local Variables:
|
|
// mode: outline-minor
|
|
// outline-regexp: "/// @brief\\|/// {@inheritDoc}\\|/// @addtogroup\\|/// @page\\|// --SECTION--\\|/// @\\}"
|
|
// End:
|