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Add a unique_ptr/ptr comparator object

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This commit is contained in:
Danny Robson 2012-08-22 16:12:54 +10:00
parent b8ef0afc1d
commit f90ff0e9f6
3 changed files with 86 additions and 0 deletions
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2
Makefile.am
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@ -117,6 +117,8 @@ UTIL_FILES = \
types.hpp \
types/bits.hpp \
types/casts.hpp \
types/comparator.hpp\
types/comparator.ipp\
types/string.cpp \
types/string.hpp \
types/traits.hpp \

35
types/comparator.hpp Normal file
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@ -0,0 +1,35 @@
/*
* This file is part of libgim.
*
* libgim 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.
*
* libgim 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 libgim. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2012 Danny Robson <danny@nerdcruft.net>
*/
#ifndef __UTIL_TYPES_COMPARATOR_HPP
#define __UTIL_TYPES_COMPARATOR_HPP
#include <memory>
namespace util {
template <typename T>
struct pointer_comparator {
bool operator() (const std::unique_ptr<T> &lhs, const std::unique_ptr<T> &rhs);
bool operator() (const T *lhs, const std::unique_ptr<T> &rhs);
bool operator() (const std::unique_ptr<T> &lhs, const T *rhs);
};
}
#include "util/types/comparator.ipp"
#endif

49
types/comparator.ipp Normal file
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@ -0,0 +1,49 @@
/*
* This file is part of libgim.
*
* libgim 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.
*
* libgim 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 libgim. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2012 Danny Robson <danny@nerdcruft.net>
*/
#ifdef __UTIL_TYPES_COMPARATOR_IPP
#error "Double inclusion for util/types/comparator.ipp"
#endif
#define __UTIL_TYPES_COMPARATOR_IPP
//-----------------------------------------------------------------------------
namespace util {
template <typename T>
bool
pointer_comparator<T>::operator() (const std::unique_ptr<T> &lhs,
const std::unique_ptr<T> &rhs)
{ return lhs < rhs; }
template <typename T>
bool
pointer_comparator<T>::operator() (const T *lhs,
const std::unique_ptr<T> &rhs)
{ return lhs < rhs.get (); }
template <typename T>
bool
pointer_comparator<T>::operator() (const std::unique_ptr<T> &lhs,
const T *rhs)
{ return lhs.get () < rhs; }
}