allocator.h
1 /* This file is part of the Gudhi Library. The Gudhi library
2  * (Geometric Understanding in Higher Dimensions) is a generic C++
3  * library for computational topology.
4  *
5  * Author(s): Marc Glisse
6  *
7  * Copyright (C) 2015 Inria
8  *
9  * This program is free software: you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation, either version 3 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program. If not, see <http://www.gnu.org/licenses/>.
21  */
22 
23 #ifndef ALLOCATOR_H_
24 #define ALLOCATOR_H_
25 
26 #include <memory>
27 #include <utility>
28 
29 namespace Gudhi {
30 
34 template <class T, class Base = std::allocator<T>>
35 struct no_init_allocator : Base {
36  typedef std::allocator_traits<Base> Base_traits;
37  template <class U> struct rebind {
38  typedef no_init_allocator<U, typename Base_traits::template rebind_alloc<U>> other;
39  };
40 
41  // Inherit constructors.
42  using Base::Base;
43 
44  // Do nothing: that's the whole point!
45  template<class P>
46  void construct(P*) noexcept {}
47 
48  template<class P, class...U> void construct(P*p, U&&...u) {
49  Base_traits::construct(*(Base*)this, p, std::forward<U>(u)...);
50  }
51 };
52 
53 } // namespace Gudhi
54 
55 #endif // ALLOCATOR_H_
Definition: SimplicialComplexForAlpha.h:26
GUDHI  Version 2.2.0  - C++ library for Topological Data Analysis (TDA) and Higher Dimensional Geometry Understanding.  - Copyright : GPL v3 Generated on Tue Aug 21 2018 01:41:05 for GUDHI by Doxygen 1.8.13