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unique_ptr.h
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1
18
19#ifndef A_UTIL_UTIL_MEMORY_UNIQUE_PTR_HEADER_INCLUDED
20#define A_UTIL_UTIL_MEMORY_UNIQUE_PTR_HEADER_INCLUDED
21
22#include <memory>
23
24namespace a_util {
25namespace memory {
30using ::std::unique_ptr;
31
32#if (!defined(_MSC_VER) && !(__cplusplus > 201103L)) || \
33 (defined(_MSC_VER) && (_MSC_VER < 1800)) || defined(A_UTIL_ENABLE_MAKE_UNIQUE)
34
36template <class T>
37struct _Unique_if {
38 typedef unique_ptr<T> _Single_object;
39};
40
41template <class T>
42struct _Unique_if<T[]> {
43 typedef unique_ptr<T[]> _Unknown_bound;
44};
45
46template <class T, size_t N>
47struct _Unique_if<T[N]> {
48 typedef void _Known_bound;
49};
51
67template <class T, class... Args>
68typename _Unique_if<T>::_Single_object make_unique(Args&&... args)
69{
70 return unique_ptr<T>(new T(std::forward<Args>(args)...));
71}
72
87template <class T>
88typename _Unique_if<T>::_Unknown_bound make_unique(size_t n)
89{
90 typedef typename std::remove_extent<T>::type U;
91 return unique_ptr<T>(new U[n]());
92}
93
107template <class T, class... Args>
108typename _Unique_if<T>::_Known_bound make_unique(Args&&...) = delete;
109
110#else
111
116
117using ::std::make_unique;
118
119#endif // defined(A_UTIL_ENABLE_MAKE_UNIQUE)
120
121} // namespace memory
122} // namespace a_util
123
124#endif // A_UTIL_UTIL_MEMORY_UNIQUE_PTR_HEADER_INCLUDED
Serves as component for memory access and management.
Definition memory.h:20
_Unique_if< T >::_Single_object make_unique(Args &&... args)
Definition unique_ptr.h:68
Serves as the root component, with common functionality documented in core functionality.
Definition base.h:24