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func_create_ff.cpp

toml4
Antonio SJ Musumeci 10 months ago
parent
commit
95dea4020f
  1. 41
      src/make_unique.hpp

41
src/make_unique.hpp

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