Incomplete work for using Boost.Polygon to compute medial axis

xs/src/boost/range/detail/implementation_help.hpp

@@ -0,0 +1,103 @@
+// Boost.Range library
+//
+//  Copyright Thorsten Ottosen 2003-2004. Use, modification and
+//  distribution is subject to the Boost Software License, Version
+//  1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+// For more information, see http://www.boost.org/libs/range/
+//
+
+#ifndef BOOST_RANGE_DETAIL_IMPLEMENTATION_HELP_HPP
+#define BOOST_RANGE_DETAIL_IMPLEMENTATION_HELP_HPP
+
+#include <boost/range/config.hpp>
+#include <boost/range/detail/common.hpp>
+#include <boost/type_traits/is_same.hpp>
+#include <cstddef>
+#include <string.h>
+
+#ifndef BOOST_NO_CWCHAR
+#include <wchar.h>
+#endif
+
+namespace boost
+{
+    namespace range_detail
+    {
+        template <typename T>
+        inline void boost_range_silence_warning( const T& ) { }
+
+        /////////////////////////////////////////////////////////////////////
+        // end() help
+        /////////////////////////////////////////////////////////////////////
+
+        inline const char* str_end( const char* s, const char* )
+        {
+            return s + strlen( s );
+        }
+
+#ifndef BOOST_NO_CWCHAR
+        inline const wchar_t* str_end( const wchar_t* s, const wchar_t* )
+        {
+            return s + wcslen( s );
+        }
+#else
+        inline const wchar_t* str_end( const wchar_t* s, const wchar_t* )
+        {
+            if( s == 0 || s[0] == 0 )
+                return s;
+            while( *++s != 0 )
+                ;
+            return s;
+        }
+#endif
+
+        template< class Char >
+        inline Char* str_end( Char* s )
+        {
+            return const_cast<Char*>( str_end( s, s ) );
+        }
+
+        template< class T, std::size_t sz >
+        inline T* array_end( T BOOST_RANGE_ARRAY_REF()[sz] )
+        {
+            return boost_range_array + sz;
+        }
+
+        template< class T, std::size_t sz >
+        inline const T* array_end( const T BOOST_RANGE_ARRAY_REF()[sz] )
+        {
+            return boost_range_array + sz;
+        }
+
+        /////////////////////////////////////////////////////////////////////
+        // size() help
+        /////////////////////////////////////////////////////////////////////
+
+        template< class Char >
+        inline std::size_t str_size( const Char* const& s )
+        {
+            return str_end( s ) - s;
+        }
+
+        template< class T, std::size_t sz >
+        inline std::size_t array_size( T BOOST_RANGE_ARRAY_REF()[sz] )
+        {
+            boost_range_silence_warning( boost_range_array );
+            return sz;
+        }
+
+        template< class T, std::size_t sz >
+        inline std::size_t array_size( const T BOOST_RANGE_ARRAY_REF()[sz] )
+        {
+            boost_range_silence_warning( boost_range_array );
+            return sz;
+        }
+
+    } // namespace 'range_detail'
+
+} // namespace 'boost'
+
+
+#endif