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Allow using C++20 ranges with Boost.Range #123

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17 changes: 17 additions & 0 deletions include/boost/range/const_iterator.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,9 @@
#include <boost/type_traits/remove_reference.hpp>
#include <cstddef>
#include <utility>
#if __cpp_lib_ranges >= 201911L
# include <ranges>
#endif

namespace boost
{
Expand All @@ -40,6 +43,20 @@ struct range_const_iterator_helper
: extract_const_iterator<C>
{};

//////////////////////////////////////////////////////////////////////////
// common_range
//////////////////////////////////////////////////////////////////////////

#if __cpp_lib_ranges >= 201902L

template< std::ranges::common_range C >
struct range_const_iterator_helper< C >
{
typedef std::ranges::iterator_t< C const > type;
};

#endif

//////////////////////////////////////////////////////////////////////////
// pair
//////////////////////////////////////////////////////////////////////////
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17 changes: 17 additions & 0 deletions include/boost/range/mutable_iterator.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,9 @@
#include <boost/iterator/iterator_traits.hpp>
#include <cstddef>
#include <utility>
#if __cpp_lib_ranges >= 201902L
# include <ranges>
#endif

namespace boost
{
Expand All @@ -42,6 +45,20 @@ struct range_mutable_iterator
BOOST_DEDUCED_TYPENAME remove_reference<C>::type>
{};

//////////////////////////////////////////////////////////////////////////
// common_range
//////////////////////////////////////////////////////////////////////////

#if __cpp_lib_ranges >= 201902L

template< std::ranges::common_range C >
struct range_mutable_iterator< C >
{
typedef std::ranges::iterator_t< C > type;
};

#endif

//////////////////////////////////////////////////////////////////////////
// pair
//////////////////////////////////////////////////////////////////////////
Expand Down