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
|
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03
// <memory>
// template <class OuterAlloc, class... InnerAllocs>
// class scoped_allocator_adaptor
// typedef see below is_always_equal;
#include <scoped_allocator>
#include <type_traits>
#include "allocators.h"
#include "min_allocator.h"
int main()
{
// sanity checks
static_assert( (std::is_same<
std::allocator_traits<A1<int>>::is_always_equal, std::false_type>::value
), "" );
static_assert( (std::is_same<
std::allocator_traits<min_allocator<int>>::is_always_equal, std::true_type>::value
), "" );
// wrapping one allocator
static_assert(
(std::is_same<
std::scoped_allocator_adaptor<A1<int>>::is_always_equal,
std::allocator_traits<A1<int>>::is_always_equal
>::value), "");
// wrapping one allocator
static_assert(
(std::is_same<
std::scoped_allocator_adaptor<min_allocator<int>>::is_always_equal,
std::allocator_traits<min_allocator<int>>::is_always_equal
>::value), "");
// wrapping two allocators (check the values instead of the types)
static_assert((
std::scoped_allocator_adaptor<A1<int>, A2<int>>::is_always_equal::value ==
( std::allocator_traits<A1<int>>::is_always_equal::value &&
std::allocator_traits<A2<int>>::is_always_equal::value)
), "");
// wrapping two allocators (check the values instead of the types)
static_assert((
std::scoped_allocator_adaptor<A1<int>, min_allocator<int>>::is_always_equal::value ==
( std::allocator_traits<A1<int>>::is_always_equal::value &&
std::allocator_traits<min_allocator<int>>::is_always_equal::value)
), "");
// wrapping three allocators (check the values instead of the types)
static_assert((
std::scoped_allocator_adaptor<A1<int>, A2<int>, A3<int>>::is_always_equal::value ==
( std::allocator_traits<A1<int>>::is_always_equal::value &&
std::allocator_traits<A2<int>>::is_always_equal::value &&
std::allocator_traits<A3<int>>::is_always_equal::value)
), "");
}
|
