]>
git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/ext/mt_allocator/tune-4.cc
1 // 2004-08-25 Benjamin Kosnik <bkoz@redhat.com>
3 // Copyright (C) 2004-2021 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING3. If not see
18 // <http://www.gnu.org/licenses/>.
20 #include <testsuite_hooks.h>
22 #include <ext/mt_allocator.h>
24 // Tune characteristics, two of same type
25 template<typename _Tp
>
27 { static bool per_type() { return true; } };
29 using __gnu_cxx::__pool
;
30 using __gnu_cxx::__common_pool_policy
;
33 struct test_policy
<__common_pool_policy
<__pool
, true> >
34 { static bool per_type() { return false; } };
37 struct test_policy
<__common_pool_policy
<__pool
, false> >
38 { static bool per_type() { return false; } };
47 // Tune characteristics, two of different instantiations
48 template<typename _Tp
, typename _Cp
>
51 typedef __gnu_cxx::__pool_base::_Tune tune_type
;
52 typedef _Tp value_type
;
53 typedef _Cp policy_type
;
54 typedef __gnu_cxx::__mt_alloc
<value_type
, policy_type
> allocator_type
;
57 tune_type t_default
= a
._M_get_options();
58 tune_type
t_opt(32, 5120, 32, 5120, 20, 10, false);
59 tune_type
t_small(16, 1024, 32, 2048, 1, 10, false);
61 // First instance of local type assured.
62 tune_type t1
= t_default
;
63 if (test_policy
<policy_type
>::per_type())
65 a
._M_set_options(t_opt
);
66 t1
= a
._M_get_options();
67 VERIFY( t1
._M_align
!= t_default
._M_align
);
70 // Lock tune settings.
71 typename
allocator_type::pointer p1
= a
.allocate(128);
73 typedef pod2 value2_type
;
74 typedef typename
allocator_type::template rebind
<value2_type
>::other rebind_type
;
77 tune_type t2
= a2
._M_get_options();
79 // Both policy_type and rebind_type::policy_type have same characteristics.
80 if (test_policy
<policy_type
>::per_type())
82 a2
._M_set_options(t_opt
);
83 tune_type t
= a2
._M_get_options();
84 VERIFY( t2
._M_align
!= t
._M_align
);
88 typename
rebind_type::pointer p2
= a2
.allocate(5128);
90 a2
._M_set_options(t_small
);
91 tune_type t4
= a2
._M_get_options();
92 VERIFY( t4
._M_chunk_size
!= t_small
._M_chunk_size
);
93 VERIFY( t4
._M_chunk_size
== t2
._M_chunk_size
);
95 a
.deallocate(p1
, 128);
96 a2
.deallocate(p2
, 5128);
102 test04
<float, __gnu_cxx::__common_pool_policy
<__pool
, true> >();
103 test04
<double, __gnu_cxx::__per_type_pool_policy
<double, __pool
, true> >();
105 test04
<float, __gnu_cxx::__common_pool_policy
<__pool
, false> >();
106 test04
<double, __gnu_cxx::__per_type_pool_policy
<double, __pool
, false> >();