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Containers utils: use Container&& in order to accept temporaries

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Maxime Coste 2013-02-27 19:58:07 +01:00
parent 2f410f62e4
commit f82a2e22a1
1 changed files with 4 additions and 4 deletions
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8
src/utils.hh
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@ -137,27 +137,27 @@ struct ReversedContainer
}; };
template<typename Container> template<typename Container>
ReversedContainer<Container> reversed(Container& container) ReversedContainer<Container> reversed(Container&& container)
{ {
return ReversedContainer<Container>(container); return ReversedContainer<Container>(container);
} }
template<typename Container, typename T> template<typename Container, typename T>
auto find(Container& container, const T& value) -> decltype(container.begin()) auto find(Container&& container, const T& value) -> decltype(container.begin())
{ {
return std::find(container.begin(), container.end(), value); return std::find(container.begin(), container.end(), value);
} }
template<typename Container, typename T> template<typename Container, typename T>
auto find_if(Container& container, T op) -> decltype(container.begin()) auto find_if(Container&& container, T op) -> decltype(container.begin())
{ {
return std::find_if(container.begin(), container.end(), op); return std::find_if(container.begin(), container.end(), op);
} }
template<typename Container, typename T> template<typename Container, typename T>
bool contains(const Container& container, const T& value) bool contains(Container&& container, const T& value)
{ {
return (not container.empty()) and find(container, value) != container.end(); return (not container.empty()) and find(container, value) != container.end();
} }