mirror of
https://github.com/yuzu-emu/ext-boost.git
synced 2024-12-23 09:55:34 +00:00
88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
/*-----------------------------------------------------------------------------+
|
|
Copyright (c) 2010-2010: Joachim Faulhaber
|
|
+------------------------------------------------------------------------------+
|
|
Distributed under the Boost Software License, Version 1.0.
|
|
(See accompanying file LICENCE.txt or copy at
|
|
http://www.boost.org/LICENSE_1_0.txt)
|
|
+-----------------------------------------------------------------------------*/
|
|
#ifndef BOOST_ICL_CONCEPT_CONTAINER_HPP_JOFA_100923
|
|
#define BOOST_ICL_CONCEPT_CONTAINER_HPP_JOFA_100923
|
|
|
|
#include <boost/utility/enable_if.hpp>
|
|
#include <boost/mpl/and.hpp>
|
|
#include <boost/mpl/not.hpp>
|
|
#include <boost/icl/type_traits/is_container.hpp>
|
|
#include <boost/icl/type_traits/is_icl_container.hpp>
|
|
|
|
namespace boost{ namespace icl
|
|
{
|
|
|
|
//==============================================================================
|
|
//= Emptieness
|
|
//==============================================================================
|
|
|
|
/** Tests if the container is empty.
|
|
Complexity: constant. */
|
|
template<class Type>
|
|
typename enable_if<is_container<Type>, bool>::type
|
|
is_empty(const Type& object)
|
|
{
|
|
return object.begin()==object.end();
|
|
}
|
|
|
|
|
|
/** All content of the container is dropped.
|
|
Complexity: linear. */
|
|
template<class Type>
|
|
typename enable_if<is_container<Type>, void>::type
|
|
clear(Type& object)
|
|
{
|
|
object.erase(object.begin(), object.end());
|
|
}
|
|
|
|
//==============================================================================
|
|
//= Size
|
|
//==============================================================================
|
|
|
|
template<class Type>
|
|
typename enable_if<mpl::and_< is_container<Type>
|
|
, mpl::not_<is_icl_container<Type> > >
|
|
, std::size_t>::type
|
|
iterative_size(const Type& object)
|
|
{
|
|
return object.size();
|
|
}
|
|
|
|
//==============================================================================
|
|
//= Swap
|
|
//==============================================================================
|
|
|
|
template<class Type>
|
|
typename enable_if<is_container<Type>, void>::type
|
|
swap(Type& left, Type& right)
|
|
{
|
|
left.swap(right);
|
|
}
|
|
|
|
//==============================================================================
|
|
//= Iteration
|
|
//==============================================================================
|
|
|
|
template<class Type>
|
|
typename enable_if<is_container<Type>, typename Type::iterator>::type
|
|
cyclic_prior(Type& object, typename Type::iterator it_)
|
|
{ return it_ == object.begin() ? object.end() : --it_; }
|
|
|
|
template<class Type>
|
|
typename enable_if<is_container<Type>, typename Type::const_iterator>::type
|
|
cyclic_prior(const Type& object, typename Type::const_iterator it_)
|
|
{ return it_ == object.begin() ? object.end() : --it_; }
|
|
|
|
|
|
|
|
}} // namespace boost icl
|
|
|
|
#endif
|
|
|
|
|