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      1 //===----------------------------------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 // <map>
     11 
     12 // class map
     13 
     14 // template <class Key, class T, class Compare, class Allocator>
     15 //   void
     16 //   swap(map<Key, T, Compare, Allocator>& x, map<Key, T, Compare, Allocator>& y);
     17 
     18 #include <map>
     19 #include <cassert>
     20 #include "test_allocator.h"
     21 #include "../../../test_compare.h"
     22 #include "min_allocator.h"
     23 
     24 int main()
     25 {
     26     typedef std::pair<const int, double> V;
     27     {
     28     typedef std::map<int, double> M;
     29     {
     30         M m1;
     31         M m2;
     32         M m1_save = m1;
     33         M m2_save = m2;
     34         swap(m1, m2);
     35         assert(m1 == m2_save);
     36         assert(m2 == m1_save);
     37     }
     38     {
     39         V ar2[] =
     40         {
     41             V(5, 5),
     42             V(6, 6),
     43             V(7, 7),
     44             V(8, 8),
     45             V(9, 9),
     46             V(10, 10),
     47             V(11, 11),
     48             V(12, 12)
     49         };
     50         M m1;
     51         M m2(ar2, ar2+sizeof(ar2)/sizeof(ar2[0]));
     52         M m1_save = m1;
     53         M m2_save = m2;
     54         swap(m1, m2);
     55         assert(m1 == m2_save);
     56         assert(m2 == m1_save);
     57     }
     58     {
     59         V ar1[] =
     60         {
     61             V(1, 1),
     62             V(2, 2),
     63             V(3, 3),
     64             V(4, 4)
     65         };
     66         M m1(ar1, ar1+sizeof(ar1)/sizeof(ar1[0]));
     67         M m2;
     68         M m1_save = m1;
     69         M m2_save = m2;
     70         swap(m1, m2);
     71         assert(m1 == m2_save);
     72         assert(m2 == m1_save);
     73     }
     74     {
     75         V ar1[] =
     76         {
     77             V(1, 1),
     78             V(2, 2),
     79             V(3, 3),
     80             V(4, 4)
     81         };
     82         V ar2[] =
     83         {
     84             V(5, 5),
     85             V(6, 6),
     86             V(7, 7),
     87             V(8, 8),
     88             V(9, 9),
     89             V(10, 10),
     90             V(11, 11),
     91             V(12, 12)
     92         };
     93         M m1(ar1, ar1+sizeof(ar1)/sizeof(ar1[0]));
     94         M m2(ar2, ar2+sizeof(ar2)/sizeof(ar2[0]));
     95         M m1_save = m1;
     96         M m2_save = m2;
     97         swap(m1, m2);
     98         assert(m1 == m2_save);
     99         assert(m2 == m1_save);
    100     }
    101     }
    102     {
    103         typedef test_allocator<V> A;
    104         typedef test_compare<std::less<int> > C;
    105         typedef std::map<int, double, C, A> M;
    106         V ar1[] =
    107         {
    108             V(1, 1),
    109             V(2, 2),
    110             V(3, 3),
    111             V(4, 4)
    112         };
    113         V ar2[] =
    114         {
    115             V(5, 5),
    116             V(6, 6),
    117             V(7, 7),
    118             V(8, 8),
    119             V(9, 9),
    120             V(10, 10),
    121             V(11, 11),
    122             V(12, 12)
    123         };
    124         M m1(ar1, ar1+sizeof(ar1)/sizeof(ar1[0]), C(1), A(1, 1));
    125         M m2(ar2, ar2+sizeof(ar2)/sizeof(ar2[0]), C(2), A(1, 2));
    126         M m1_save = m1;
    127         M m2_save = m2;
    128         swap(m1, m2);
    129         assert(m1 == m2_save);
    130         assert(m2 == m1_save);
    131         assert(m1.key_comp() == C(2));
    132         assert(m1.get_allocator().get_id() == 1); // not swapped
    133         assert(m2.key_comp() == C(1));
    134         assert(m2.get_allocator().get_id() == 2);
    135     }
    136     {
    137         typedef other_allocator<V> A;
    138         typedef test_compare<std::less<int> > C;
    139         typedef std::map<int, double, C, A> M;
    140         V ar1[] =
    141         {
    142             V(1, 1),
    143             V(2, 2),
    144             V(3, 3),
    145             V(4, 4)
    146         };
    147         V ar2[] =
    148         {
    149             V(5, 5),
    150             V(6, 6),
    151             V(7, 7),
    152             V(8, 8),
    153             V(9, 9),
    154             V(10, 10),
    155             V(11, 11),
    156             V(12, 12)
    157         };
    158         M m1(ar1, ar1+sizeof(ar1)/sizeof(ar1[0]), C(1), A(1));
    159         M m2(ar2, ar2+sizeof(ar2)/sizeof(ar2[0]), C(2), A(2));
    160         M m1_save = m1;
    161         M m2_save = m2;
    162         swap(m1, m2);
    163         assert(m1 == m2_save);
    164         assert(m2 == m1_save);
    165         assert(m1.key_comp() == C(2));
    166         assert(m1.get_allocator() == A(2));
    167         assert(m2.key_comp() == C(1));
    168         assert(m2.get_allocator() == A(1));
    169     }
    170 #if TEST_STD_VER >= 11
    171     {
    172     typedef std::map<int, double, std::less<int>, min_allocator<V>> M;
    173     {
    174         M m1;
    175         M m2;
    176         M m1_save = m1;
    177         M m2_save = m2;
    178         swap(m1, m2);
    179         assert(m1 == m2_save);
    180         assert(m2 == m1_save);
    181     }
    182     {
    183         V ar2[] =
    184         {
    185             V(5, 5),
    186             V(6, 6),
    187             V(7, 7),
    188             V(8, 8),
    189             V(9, 9),
    190             V(10, 10),
    191             V(11, 11),
    192             V(12, 12)
    193         };
    194         M m1;
    195         M m2(ar2, ar2+sizeof(ar2)/sizeof(ar2[0]));
    196         M m1_save = m1;
    197         M m2_save = m2;
    198         swap(m1, m2);
    199         assert(m1 == m2_save);
    200         assert(m2 == m1_save);
    201     }
    202     {
    203         V ar1[] =
    204         {
    205             V(1, 1),
    206             V(2, 2),
    207             V(3, 3),
    208             V(4, 4)
    209         };
    210         M m1(ar1, ar1+sizeof(ar1)/sizeof(ar1[0]));
    211         M m2;
    212         M m1_save = m1;
    213         M m2_save = m2;
    214         swap(m1, m2);
    215         assert(m1 == m2_save);
    216         assert(m2 == m1_save);
    217     }
    218     {
    219         V ar1[] =
    220         {
    221             V(1, 1),
    222             V(2, 2),
    223             V(3, 3),
    224             V(4, 4)
    225         };
    226         V ar2[] =
    227         {
    228             V(5, 5),
    229             V(6, 6),
    230             V(7, 7),
    231             V(8, 8),
    232             V(9, 9),
    233             V(10, 10),
    234             V(11, 11),
    235             V(12, 12)
    236         };
    237         M m1(ar1, ar1+sizeof(ar1)/sizeof(ar1[0]));
    238         M m2(ar2, ar2+sizeof(ar2)/sizeof(ar2[0]));
    239         M m1_save = m1;
    240         M m2_save = m2;
    241         swap(m1, m2);
    242         assert(m1 == m2_save);
    243         assert(m2 == m1_save);
    244     }
    245     }
    246     {
    247         typedef min_allocator<V> A;
    248         typedef test_compare<std::less<int> > C;
    249         typedef std::map<int, double, C, A> M;
    250         V ar1[] =
    251         {
    252             V(1, 1),
    253             V(2, 2),
    254             V(3, 3),
    255             V(4, 4)
    256         };
    257         V ar2[] =
    258         {
    259             V(5, 5),
    260             V(6, 6),
    261             V(7, 7),
    262             V(8, 8),
    263             V(9, 9),
    264             V(10, 10),
    265             V(11, 11),
    266             V(12, 12)
    267         };
    268         M m1(ar1, ar1+sizeof(ar1)/sizeof(ar1[0]), C(1), A());
    269         M m2(ar2, ar2+sizeof(ar2)/sizeof(ar2[0]), C(2), A());
    270         M m1_save = m1;
    271         M m2_save = m2;
    272         swap(m1, m2);
    273         assert(m1 == m2_save);
    274         assert(m2 == m1_save);
    275         assert(m1.key_comp() == C(2));
    276         assert(m1.get_allocator() == A());
    277         assert(m2.key_comp() == C(1));
    278         assert(m2.get_allocator() == A());
    279     }
    280 #endif
    281 }
    282