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refs #852 Added reverse iterators to CRange and CSequence.

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This commit is contained in:
Mathew Sutcliffe
2017-01-09 01:33:01 +00:00
parent ec44c100b7
commit 4d30ce40c7
2 changed files with 33 additions and 0 deletions
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20
src/blackmisc/sequence.h
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@@ -57,6 +57,8 @@ namespace BlackMisc
typedef const T *const_pointer;
typedef typename Iterators::ConstRandomAccessIterator<T> const_iterator;
typedef typename Iterators::RandomAccessIterator<T> iterator;
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
typedef std::reverse_iterator<iterator> reverse_iterator;
typedef ptrdiff_t difference_type;
typedef int size_type;
//! @}
@@ -113,6 +115,24 @@ namespace BlackMisc
//! Returns const iterator one past the end of the sequence.
const_iterator cend() const { return pimpl() ? pimpl()->cend() : const_iterator(); }
//! Returns iterator at the beginning of the reversed sequence.
reverse_iterator rbegin() { return reverse_iterator(end()); }
//! Returns const iterator at the beginning of the reversed sequence.
const_reverse_iterator rbegin() const { return const_reverse_iterator(end()); }
//! Returns const iterator at the beginning of the reversed sequence.
const_reverse_iterator crbegin() const { return const_reverse_iterator(cend()); }
//! Returns iterator at the end of the reversed sequence.
reverse_iterator rend() { return reverse_iterator(begin()); }
//! Returns const iterator at the end of the reversed sequence.
const_reverse_iterator rend() const { return const_reverse_iterator(begin()); }
//! Returns const iterator at the end of the reversed sequence.
const_reverse_iterator crend() const { return const_reverse_iterator(cbegin()); }
//! Swap this sequence with another.
void swap(CSequence &other) noexcept { m_pimpl.swap(other.m_pimpl); }