IsBasic.h

Go to the documentation of this file.

/***************************************************************************
 *
 * Copyright (C) 2009-2010 Cassio Neri Moreira
 *
 * This file is part of the KeyValue library.
 *
 * The KeyValue library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or (at
 * your option) any later version.
 *
 * The KeyValue library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
 * Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with KeyValue. If not, see <http://www.gnu.org/licenses/>.
 *
 **************************************************************************/

#ifndef KEYVALUE_UTIL_ISBASIC_H_
#define KEYVALUE_UTIL_ISBASIC_H_

#include <boost/type_traits/is_enum.hpp>

#include "keyvalue/extern/String.h"
#include "keyvalue/extern/Ptime.h"

namespace keyvalue {
namespace util {

template <typename ElementType>
struct IsBasic {
  enum { value_ = 0 };
};

template <>
struct IsBasic<bool> {
  enum { value_ = 1 };
};

template <>
struct IsBasic<double> {
  enum { value_ = 1 };
};

template <>
struct IsBasic<string> {
  enum { value_ = 1 };
};

template <>
struct IsBasic<ptime> {
  enum { value_ = 1 };
};

template <>
struct IsBasic<unsigned int> {
  enum { value_ = 1 };
};

template <typename ElementType>
struct IsBasicOrEnum {
  enum { value_ = (boost::is_enum<ElementType>::value ||
    IsBasic<ElementType>::value_ ? 1 : 0) };
};

} // namespace util
} // namespace keyvalue

#endif // KEYVALUE_UTIL_ISBASIC_H_