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#include <cstddef>
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#include <memory>
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#include <type_traits>
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#include <utility>
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namespace std |
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{ |
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template<class T> struct _Unique_if |
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{ |
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typedef unique_ptr<T> _Single_object; |
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}; |
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template<class T> struct _Unique_if<T[]> |
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{ |
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typedef unique_ptr<T[]> _Unknown_bound; |
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}; |
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template<class T, size_t N> struct _Unique_if<T[N]> |
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{ |
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typedef void _Known_bound; |
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}; |
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template<class T, class... Args> |
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typename _Unique_if<T>::_Single_object |
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make_unique(Args&&... args) |
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{ |
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return unique_ptr<T>(new T(std::forward<Args>(args)...)); |
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} |
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template<class T> |
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typename _Unique_if<T>::_Unknown_bound |
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make_unique(size_t n) |
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{ |
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typedef typename remove_extent<T>::type U; |
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return unique_ptr<T>(new U[n]()); |
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} |
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template<class T, class... Args> |
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typename _Unique_if<T>::_Known_bound |
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make_unique(Args&&...) = delete; |
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} |