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#pragma once |
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|
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template<typename Container> |
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struct slice_view |
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{ |
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typedef Container container_type; |
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|
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typedef typename container_type::const_iterator const_iterator; |
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typedef typename container_type::iterator iterator; |
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|
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typedef typename container_type::const_reverse_iterator const_reverse_iterator; |
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typedef typename container_type::reverse_iterator reverse_iterator; |
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|
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slice_view (Container const &container, size_t offset) |
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: container (container) |
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, offset (offset) |
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{ |
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if (container.size () < offset) |
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throw "slice out of bounds"; |
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else if (container.size () == offset) |
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throw "empty slice interval"; |
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} |
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|
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const_iterator begin () const { return container.begin () + offset; } |
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const_iterator end () const { return container.end (); } |
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|
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const_reverse_iterator rbegin () const { return container.rbegin () + offset; } |
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const_reverse_iterator rend () const { return container.rend (); } |
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|
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private: |
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container_type const &container; |
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size_t offset; |
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}; |
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|
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template<typename Container> |
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slice_view<Container> |
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slice (Container const &container, size_t offset) |
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{ |
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return slice_view<Container> (container, offset); |
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} |
