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ranges: Support temporary parameters passed to concatenated

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This commit is contained in:
Maxime Coste 2018-02-20 21:55:06 +11:00
parent 9b5b974397
commit 6239357e99
1 changed files with 4 additions and 4 deletions
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8
src/ranges.hh
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@ -263,7 +263,7 @@ struct ConcatView
: m_it1(std::move(it1)), m_end1(std::move(end1)),
m_it2(std::move(it2)) {}
ValueType operator*() { return is2() ? *m_it2 : *m_it1; }
decltype(auto) operator*() { return is2() ? *m_it2 : *m_it1; }
Iterator& operator++() { if (is2()) ++m_it2; else ++m_it1; return *this; }
Iterator operator++(int) { auto copy = *this; ++*this; return copy; }
@ -293,12 +293,12 @@ struct ConcatView
Iterator end() const { return {m_range1.end(), m_range1.end(), m_range2.end()}; }
private:
Range1& m_range1;
Range2& m_range2;
Range1 m_range1;
Range2 m_range2;
};
template<typename Range1, typename Range2>
ConcatView<Range1, Range2> concatenated(Range1&& range1, Range2&& range2)
ConcatView<decay_range<Range1>, decay_range<Range2>> concatenated(Range1&& range1, Range2&& range2)
{
return {range1, range2};
}