138 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
		
		
			
		
	
	
			138 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
|   | // Boost.Range library
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|  | //
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|  | //  Copyright Thorsten Ottosen 2003-2004. Use, modification and
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|  | //  distribution is subject to the Boost Software License, Version
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|  | //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
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|  | //  http://www.boost.org/LICENSE_1_0.txt)
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|  | //
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|  | // For more information, see http://www.boost.org/libs/range/
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|  | //
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|  | 
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|  | #ifndef BOOST_RANGE_BEGIN_HPP
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|  | #define BOOST_RANGE_BEGIN_HPP
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|  | 
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|  | #if defined(_MSC_VER)
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|  | # pragma once
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|  | #endif
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|  | 
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|  | #include <boost/range/config.hpp>
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|  | 
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|  | #include <boost/range/iterator.hpp>
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|  | #include <boost/config.hpp>
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|  | #include <boost/config/workaround.hpp>
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|  | 
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|  | namespace boost | ||
|  | { | ||
|  | 
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|  | #if !BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x564))
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|  | namespace range_detail | ||
|  | { | ||
|  | #endif
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|  | 
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|  |     //////////////////////////////////////////////////////////////////////
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|  |     // primary template
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|  |     //////////////////////////////////////////////////////////////////////
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|  | 
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|  |     template< typename C > | ||
|  |     BOOST_CONSTEXPR inline BOOST_DEDUCED_TYPENAME range_iterator<C>::type | ||
|  |     range_begin( C& c ) | ||
|  |     { | ||
|  |         //
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|  |         // If you get a compile-error here, it is most likely because
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|  |         // you have not implemented range_begin() properly in
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|  |         // the namespace of C
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|  |         //
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|  |         return c.begin(); | ||
|  |     } | ||
|  | 
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|  |     //////////////////////////////////////////////////////////////////////
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|  |     // pair
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|  |     //////////////////////////////////////////////////////////////////////
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|  | 
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|  |     template< typename Iterator > | ||
|  |     BOOST_CONSTEXPR inline Iterator range_begin( const std::pair<Iterator,Iterator>& p ) | ||
|  |     { | ||
|  |         return p.first; | ||
|  |     } | ||
|  | 
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|  |     template< typename Iterator > | ||
|  |     BOOST_CONSTEXPR inline Iterator range_begin( std::pair<Iterator,Iterator>& p ) | ||
|  |     { | ||
|  |         return p.first; | ||
|  |     } | ||
|  | 
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|  |     //////////////////////////////////////////////////////////////////////
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|  |     // array
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|  |     //////////////////////////////////////////////////////////////////////
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|  | 
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|  |     //
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|  |     // May this be discarded? Or is it needed for bad compilers?
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|  |     //
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|  |     template< typename T, std::size_t sz > | ||
|  |     BOOST_CONSTEXPR inline const T* range_begin( const T (&a)[sz] ) BOOST_NOEXCEPT | ||
|  |     { | ||
|  |         return a; | ||
|  |     } | ||
|  | 
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|  |     template< typename T, std::size_t sz > | ||
|  |     BOOST_CONSTEXPR inline T* range_begin( T (&a)[sz] ) BOOST_NOEXCEPT | ||
|  |     { | ||
|  |         return a; | ||
|  |     } | ||
|  | 
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|  | 
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|  | #if !BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x564))
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|  | } // namespace 'range_detail'
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|  | #endif
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|  | 
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|  | // Use a ADL namespace barrier to avoid ambiguity with other unqualified
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|  | // calls. This is particularly important with C++0x encouraging
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|  | // unqualified calls to begin/end.
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|  | namespace range_adl_barrier | ||
|  | { | ||
|  | 
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|  | template< class T > | ||
|  | #if !BOOST_WORKAROUND(BOOST_GCC, < 40700)
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|  | BOOST_CONSTEXPR | ||
|  | #endif
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|  | inline BOOST_DEDUCED_TYPENAME range_iterator<T>::type begin( T& r ) | ||
|  | { | ||
|  | #if !BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x564))
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|  |     using namespace range_detail; | ||
|  | #endif
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|  |     return range_begin( r ); | ||
|  | } | ||
|  | 
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|  | template< class T > | ||
|  | #if !BOOST_WORKAROUND(BOOST_GCC, < 40700)
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|  | BOOST_CONSTEXPR | ||
|  | #endif
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|  | inline BOOST_DEDUCED_TYPENAME range_iterator<const T>::type begin( const T& r ) | ||
|  | { | ||
|  | #if !BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x564))
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|  |     using namespace range_detail; | ||
|  | #endif
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|  |     return range_begin( r ); | ||
|  | } | ||
|  | 
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|  |     } // namespace range_adl_barrier
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|  | } // namespace boost
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|  | 
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|  | namespace boost | ||
|  | { | ||
|  |     namespace range_adl_barrier | ||
|  |     { | ||
|  |         template< class T > | ||
|  |         inline BOOST_DEDUCED_TYPENAME range_iterator<const T>::type | ||
|  |         const_begin( const T& r ) | ||
|  |         { | ||
|  |             return boost::range_adl_barrier::begin( r ); | ||
|  |         } | ||
|  |     } // namespace range_adl_barrier
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|  | 
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|  |     using namespace range_adl_barrier; | ||
|  | } // namespace boost
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|  | 
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|  | #endif
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|  | 
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