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RMakeUnique.hxx
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1/// \file ROOT/RMakeUnique.hxx
2/// \ingroup Base StdExt
3/// \author Danilo Piparo
4/// \date 2017-09-22
5
6/*************************************************************************
7 * Copyright (C) 1995-2019, Rene Brun and Fons Rademakers. *
8 * All rights reserved. *
9 * *
10 * For the licensing terms see $ROOTSYS/LICENSE. *
11 * For the list of contributors see $ROOTSYS/README/CREDITS. *
12 *************************************************************************/
13
14#ifndef ROOT_RMakeUnique
15#define ROOT_RMakeUnique
16
17#include <memory>
18
19#if __cplusplus < 201402L && !defined(_MSC_VER)
20
21#include <type_traits>
22#include <utility>
23
24namespace ROOT {
25namespace Detail {
26// Inspired from abseil
27template <typename T>
29 using scalar = std::unique_ptr<T>;
30};
31template <typename T>
33 using array = std::unique_ptr<T[]>;
34};
35template <typename T, size_t N>
37 using invalid = void;
38};
39} // namespace Detail
40} // namespace ROOT
41
42namespace std {
43
44// template <typename T, typename... Args, typename std::enable_if<!std::is_array<T>::value, int>::type = 0>
45template <typename T, typename... Args>
46typename ROOT::Detail::RMakeUniqueResult<T>::scalar make_unique(Args &&... args)
47{
48 return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
49}
50
51template <typename T>
52typename ROOT::Detail::RMakeUniqueResult<T>::array make_unique(std::size_t size)
53{
54 return std::unique_ptr<T>(new typename std::remove_extent<T>::type[size]());
55}
56
57template <typename T, typename... Args>
58typename ROOT::Detail::RMakeUniqueResult<T>::invalid make_unique(Args &&...) = delete;
59
60
61} // namespace std
62#endif
63
64#endif
#define N
int type
Definition: TGX11.cxx:120
typedef void((*Func_t)())
double T(double x)
Definition: ChebyshevPol.h:34
tbb::task_arena is an alias of tbb::interface7::task_arena, which doesn't allow to forward declare tb...
Definition: StringConv.hxx:21
std::unique_ptr< T > scalar
Definition: RMakeUnique.hxx:29