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added operator() to allow random access index with transform iterators

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[SVN r40375]
This commit is contained in:
Thorsten Jørgen Ottosen
2007-10-23 19:34:38 +00:00
parent d759c23552
commit 17514e1d44
1 changed files with 14 additions and 3 deletions
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17
include/boost/range/iterator_range.hpp
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@ -348,10 +348,21 @@ namespace boost
return *--last; return *--last;
} }
reference operator[]( size_type sz ) const reference operator[]( size_type at ) const
{ {
BOOST_ASSERT( sz < size() ); BOOST_ASSERT( at < size() );
return m_Begin[sz]; return m_Begin[at];
}
//
// When storing transform iterators, operator[]()
// fails because it returns by reference. Therefore
// operator()() is provided for these cases.
//
value_type operator()( size_type at ) const
{
BOOST_ASSERT( at < size() );
return m_Begin[at];
} }
iterator_range& advance_begin( difference_type n ) iterator_range& advance_begin( difference_type n )