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[util][range] Fix back()

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*(--boost::end(rng)); is not valid for range with pointer as iterators.
since the range is supposed to be BidirectionalRange, use rbegin
instead.
This commit is contained in:
Samuel Debionne
2015-02-27 17:03:03 +01:00
parent d31cabb067
commit cae3bab2fe
1 changed files with 2 additions and 2 deletions
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4
include/boost/geometry/util/range.hpp
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@@ -138,7 +138,7 @@ back(BidirectionalRange const& rng)
{
BOOST_RANGE_CONCEPT_ASSERT(( boost::BidirectionalRangeConcept<BidirectionalRange const> ));
BOOST_ASSERT(!boost::empty(rng));
return *(--boost::end(rng));
return *(boost::rbegin(rng));
}
/*!
@@ -151,7 +151,7 @@ back(BidirectionalRange & rng)
{
BOOST_RANGE_CONCEPT_ASSERT(( boost::BidirectionalRangeConcept<BidirectionalRange> ));
BOOST_ASSERT(!boost::empty(rng));
return *(--boost::end(rng));
return *(boost::rbegin(rng));
}