1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
// { dg-do run { target c++11 } }
// Copyright (C) 2011-2018 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
#include <memory>
#include <cstddef>
#include <testsuite_hooks.h>
struct X
{
static int counter;
X() { }
X(const X&) { ++counter; }
explicit X(int) { ++counter; }
X(int, int) { ++counter; }
X(int, int, int) { ++counter; }
};
int X::counter = 0;
template<typename T>
struct fake_allocator
{
typedef T value_type;
fake_allocator() : counter() {}
int counter;
T* allocate(std::size_t n) { return (T*)new char[n*sizeof(T)]; }
void deallocate(T* p, std::size_t) { delete[] (char*)p; }
// don't actually construct anything when these are called
void construct(T* p) { ++counter; }
void construct(T* p, int, int) { ++counter; }
};
void test01()
{
typedef std::allocator_traits<fake_allocator<X>> traits_type;
traits_type::allocator_type a;
X* p = traits_type::allocate(a, 1);
traits_type::construct(a, p);
VERIFY( a.counter == 1 );
traits_type::construct(a, p, 1);
VERIFY( a.counter == 1 );
VERIFY( X::counter == 1 );
traits_type::destroy(a, p);
traits_type::construct(a, p, 1, 1);
VERIFY( a.counter == 2 );
VERIFY( X::counter == 1 );
traits_type::construct(a, p, 1, 1, 1);
VERIFY( a.counter == 2 );
VERIFY( X::counter == 2 );
traits_type::destroy(a, p);
traits_type::deallocate(a, p, 1);
}
int main()
{
test01();
}
|
