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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 // <unordered_map>
     11 
     12 // template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
     13 //           class Alloc = allocator<pair<const Key, T>>>
     14 // class unordered_map
     15 
     16 // void swap(unordered_map& __u);
     17 
     18 #include <unordered_map>
     19 #include <string>
     20 #include <cassert>
     21 
     22 #include "../../../test_compare.h"
     23 #include "../../../test_hash.h"
     24 #include "test_allocator.h"
     25 #include "min_allocator.h"
     26 
     27 int main()
     28 {
     29     {
     30         typedef test_hash<std::hash<int> > Hash;
     31         typedef test_compare<std::equal_to<int> > Compare;
     32         typedef test_allocator<std::pair<const int, std::string> > Alloc;
     33         typedef std::unordered_map<int, std::string, Hash, Compare, Alloc> C;
     34         typedef std::pair<int, std::string> P;
     35         C c1(0, Hash(1), Compare(1), Alloc(1));
     36         C c2(0, Hash(2), Compare(2), Alloc(2));
     37         c2.max_load_factor(2);
     38         swap(c1, c2);
     39 
     40         assert(c1.bucket_count() == 0);
     41         assert(c1.size() == 0);
     42         assert(c1.hash_function() == Hash(2));
     43         assert(c1.key_eq() == Compare(2));
     44         assert(c1.get_allocator() == Alloc(1));
     45         assert(std::distance(c1.begin(), c1.end()) == c1.size());
     46         assert(std::distance(c1.cbegin(), c1.cend()) == c1.size());
     47         assert(c1.max_load_factor() == 2);
     48 
     49         assert(c2.bucket_count() == 0);
     50         assert(c2.size() == 0);
     51         assert(c2.hash_function() == Hash(1));
     52         assert(c2.key_eq() == Compare(1));
     53         assert(c2.get_allocator() == Alloc(2));
     54         assert(std::distance(c2.begin(), c2.end()) == c2.size());
     55         assert(std::distance(c2.cbegin(), c2.cend()) == c2.size());
     56         assert(c2.max_load_factor() == 1);
     57     }
     58     {
     59         typedef test_hash<std::hash<int> > Hash;
     60         typedef test_compare<std::equal_to<int> > Compare;
     61         typedef test_allocator<std::pair<const int, std::string> > Alloc;
     62         typedef std::unordered_map<int, std::string, Hash, Compare, Alloc> C;
     63         typedef std::pair<int, std::string> P;
     64         P a2[] =
     65         {
     66             P(10, "ten"),
     67             P(20, "twenty"),
     68             P(30, "thirty"),
     69             P(40, "forty"),
     70             P(50, "fifty"),
     71             P(60, "sixty"),
     72             P(70, "seventy"),
     73             P(80, "eighty"),
     74         };
     75         C c1(0, Hash(1), Compare(1), Alloc(1));
     76         C c2(std::begin(a2), std::end(a2), 0, Hash(2), Compare(2), Alloc(2));
     77         c2.max_load_factor(2);
     78         swap(c1, c2);
     79 
     80         assert(c1.bucket_count() >= 11);
     81         assert(c1.size() == 8);
     82         assert(c1.at(10) == "ten");
     83         assert(c1.at(20) == "twenty");
     84         assert(c1.at(30) == "thirty");
     85         assert(c1.at(40) == "forty");
     86         assert(c1.at(50) == "fifty");
     87         assert(c1.at(60) == "sixty");
     88         assert(c1.at(70) == "seventy");
     89         assert(c1.at(80) == "eighty");
     90         assert(c1.hash_function() == Hash(2));
     91         assert(c1.key_eq() == Compare(2));
     92         assert(c1.get_allocator() == Alloc(1));
     93         assert(std::distance(c1.begin(), c1.end()) == c1.size());
     94         assert(std::distance(c1.cbegin(), c1.cend()) == c1.size());
     95         assert(c1.max_load_factor() == 2);
     96 
     97         assert(c2.bucket_count() == 0);
     98         assert(c2.size() == 0);
     99         assert(c2.hash_function() == Hash(1));
    100         assert(c2.key_eq() == Compare(1));
    101         assert(c2.get_allocator() == Alloc(2));
    102         assert(std::distance(c2.begin(), c2.end()) == c2.size());
    103         assert(std::distance(c2.cbegin(), c2.cend()) == c2.size());
    104         assert(c2.max_load_factor() == 1);
    105     }
    106     {
    107         typedef test_hash<std::hash<int> > Hash;
    108         typedef test_compare<std::equal_to<int> > Compare;
    109         typedef test_allocator<std::pair<const int, std::string> > Alloc;
    110         typedef std::unordered_map<int, std::string, Hash, Compare, Alloc> C;
    111         typedef std::pair<int, std::string> P;
    112         P a1[] =
    113         {
    114             P(1, "one"),
    115             P(2, "two"),
    116             P(3, "three"),
    117             P(4, "four"),
    118             P(1, "four"),
    119             P(2, "four"),
    120         };
    121         C c1(std::begin(a1), std::end(a1), 0, Hash(1), Compare(1), Alloc(1));
    122         C c2(0, Hash(2), Compare(2), Alloc(2));
    123         c2.max_load_factor(2);
    124         swap(c1, c2);
    125 
    126         assert(c1.bucket_count() == 0);
    127         assert(c1.size() == 0);
    128         assert(c1.hash_function() == Hash(2));
    129         assert(c1.key_eq() == Compare(2));
    130         assert(c1.get_allocator() == Alloc(1));
    131         assert(std::distance(c1.begin(), c1.end()) == c1.size());
    132         assert(std::distance(c1.cbegin(), c1.cend()) == c1.size());
    133         assert(c1.max_load_factor() == 2);
    134 
    135         assert(c2.bucket_count() >= 5);
    136         assert(c2.size() == 4);
    137         assert(c2.at(1) == "one");
    138         assert(c2.at(2) == "two");
    139         assert(c2.at(3) == "three");
    140         assert(c2.at(4) == "four");
    141         assert(c2.hash_function() == Hash(1));
    142         assert(c2.key_eq() == Compare(1));
    143         assert(c2.get_allocator() == Alloc(2));
    144         assert(std::distance(c2.begin(), c2.end()) == c2.size());
    145         assert(std::distance(c2.cbegin(), c2.cend()) == c2.size());
    146         assert(c2.max_load_factor() == 1);
    147     }
    148     {
    149         typedef test_hash<std::hash<int> > Hash;
    150         typedef test_compare<std::equal_to<int> > Compare;
    151         typedef test_allocator<std::pair<const int, std::string> > Alloc;
    152         typedef std::unordered_map<int, std::string, Hash, Compare, Alloc> C;
    153         typedef std::pair<int, std::string> P;
    154         P a1[] =
    155         {
    156             P(1, "one"),
    157             P(2, "two"),
    158             P(3, "three"),
    159             P(4, "four"),
    160             P(1, "four"),
    161             P(2, "four"),
    162         };
    163         P a2[] =
    164         {
    165             P(10, "ten"),
    166             P(20, "twenty"),
    167             P(30, "thirty"),
    168             P(40, "forty"),
    169             P(50, "fifty"),
    170             P(60, "sixty"),
    171             P(70, "seventy"),
    172             P(80, "eighty"),
    173         };
    174         C c1(std::begin(a1), std::end(a1), 0, Hash(1), Compare(1), Alloc(1));
    175         C c2(std::begin(a2), std::end(a2), 0, Hash(2), Compare(2), Alloc(2));
    176         c2.max_load_factor(2);
    177         swap(c1, c2);
    178 
    179         assert(c1.bucket_count() >= 11);
    180         assert(c1.size() == 8);
    181         assert(c1.at(10) == "ten");
    182         assert(c1.at(20) == "twenty");
    183         assert(c1.at(30) == "thirty");
    184         assert(c1.at(40) == "forty");
    185         assert(c1.at(50) == "fifty");
    186         assert(c1.at(60) == "sixty");
    187         assert(c1.at(70) == "seventy");
    188         assert(c1.at(80) == "eighty");
    189         assert(c1.hash_function() == Hash(2));
    190         assert(c1.key_eq() == Compare(2));
    191         assert(c1.get_allocator() == Alloc(1));
    192         assert(std::distance(c1.begin(), c1.end()) == c1.size());
    193         assert(std::distance(c1.cbegin(), c1.cend()) == c1.size());
    194         assert(c1.max_load_factor() == 2);
    195 
    196         assert(c2.bucket_count() >= 5);
    197         assert(c2.size() == 4);
    198         assert(c2.at(1) == "one");
    199         assert(c2.at(2) == "two");
    200         assert(c2.at(3) == "three");
    201         assert(c2.at(4) == "four");
    202         assert(c2.hash_function() == Hash(1));
    203         assert(c2.key_eq() == Compare(1));
    204         assert(c2.get_allocator() == Alloc(2));
    205         assert(std::distance(c2.begin(), c2.end()) == c2.size());
    206         assert(std::distance(c2.cbegin(), c2.cend()) == c2.size());
    207         assert(c2.max_load_factor() == 1);
    208     }
    209 
    210     {
    211         typedef test_hash<std::hash<int> > Hash;
    212         typedef test_compare<std::equal_to<int> > Compare;
    213         typedef other_allocator<std::pair<const int, std::string> > Alloc;
    214         typedef std::unordered_map<int, std::string, Hash, Compare, Alloc> C;
    215         typedef std::pair<int, std::string> P;
    216         C c1(0, Hash(1), Compare(1), Alloc(1));
    217         C c2(0, Hash(2), Compare(2), Alloc(2));
    218         c2.max_load_factor(2);
    219         swap(c1, c2);
    220 
    221         assert(c1.bucket_count() == 0);
    222         assert(c1.size() == 0);
    223         assert(c1.hash_function() == Hash(2));
    224         assert(c1.key_eq() == Compare(2));
    225         assert(c1.get_allocator() == Alloc(2));
    226         assert(std::distance(c1.begin(), c1.end()) == c1.size());
    227         assert(std::distance(c1.cbegin(), c1.cend()) == c1.size());
    228         assert(c1.max_load_factor() == 2);
    229 
    230         assert(c2.bucket_count() == 0);
    231         assert(c2.size() == 0);
    232         assert(c2.hash_function() == Hash(1));
    233         assert(c2.key_eq() == Compare(1));
    234         assert(c2.get_allocator() == Alloc(1));
    235         assert(std::distance(c2.begin(), c2.end()) == c2.size());
    236         assert(std::distance(c2.cbegin(), c2.cend()) == c2.size());
    237         assert(c2.max_load_factor() == 1);
    238     }
    239     {
    240         typedef test_hash<std::hash<int> > Hash;
    241         typedef test_compare<std::equal_to<int> > Compare;
    242         typedef other_allocator<std::pair<const int, std::string> > Alloc;
    243         typedef std::unordered_map<int, std::string, Hash, Compare, Alloc> C;
    244         typedef std::pair<int, std::string> P;
    245         P a2[] =
    246         {
    247             P(10, "ten"),
    248             P(20, "twenty"),
    249             P(30, "thirty"),
    250             P(40, "forty"),
    251             P(50, "fifty"),
    252             P(60, "sixty"),
    253             P(70, "seventy"),
    254             P(80, "eighty"),
    255         };
    256         C c1(0, Hash(1), Compare(1), Alloc(1));
    257         C c2(std::begin(a2), std::end(a2), 0, Hash(2), Compare(2), Alloc(2));
    258         c2.max_load_factor(2);
    259         swap(c1, c2);
    260 
    261         assert(c1.bucket_count() >= 11);
    262         assert(c1.size() == 8);
    263         assert(c1.at(10) == "ten");
    264         assert(c1.at(20) == "twenty");
    265         assert(c1.at(30) == "thirty");
    266         assert(c1.at(40) == "forty");
    267         assert(c1.at(50) == "fifty");
    268         assert(c1.at(60) == "sixty");
    269         assert(c1.at(70) == "seventy");
    270         assert(c1.at(80) == "eighty");
    271         assert(c1.hash_function() == Hash(2));
    272         assert(c1.key_eq() == Compare(2));
    273         assert(c1.get_allocator() == Alloc(2));
    274         assert(std::distance(c1.begin(), c1.end()) == c1.size());
    275         assert(std::distance(c1.cbegin(), c1.cend()) == c1.size());
    276         assert(c1.max_load_factor() == 2);
    277 
    278         assert(c2.bucket_count() == 0);
    279         assert(c2.size() == 0);
    280         assert(c2.hash_function() == Hash(1));
    281         assert(c2.key_eq() == Compare(1));
    282         assert(c2.get_allocator() == Alloc(1));
    283         assert(std::distance(c2.begin(), c2.end()) == c2.size());
    284         assert(std::distance(c2.cbegin(), c2.cend()) == c2.size());
    285         assert(c2.max_load_factor() == 1);
    286     }
    287     {
    288         typedef test_hash<std::hash<int> > Hash;
    289         typedef test_compare<std::equal_to<int> > Compare;
    290         typedef other_allocator<std::pair<const int, std::string> > Alloc;
    291         typedef std::unordered_map<int, std::string, Hash, Compare, Alloc> C;
    292         typedef std::pair<int, std::string> P;
    293         P a1[] =
    294         {
    295             P(1, "one"),
    296             P(2, "two"),
    297             P(3, "three"),
    298             P(4, "four"),
    299             P(1, "four"),
    300             P(2, "four"),
    301         };
    302         C c1(std::begin(a1), std::end(a1), 0, Hash(1), Compare(1), Alloc(1));
    303         C c2(0, Hash(2), Compare(2), Alloc(2));
    304         c2.max_load_factor(2);
    305         swap(c1, c2);
    306 
    307         assert(c1.bucket_count() == 0);
    308         assert(c1.size() == 0);
    309         assert(c1.hash_function() == Hash(2));
    310         assert(c1.key_eq() == Compare(2));
    311         assert(c1.get_allocator() == Alloc(2));
    312         assert(std::distance(c1.begin(), c1.end()) == c1.size());
    313         assert(std::distance(c1.cbegin(), c1.cend()) == c1.size());
    314         assert(c1.max_load_factor() == 2);
    315 
    316         assert(c2.bucket_count() >= 5);
    317         assert(c2.size() == 4);
    318         assert(c2.at(1) == "one");
    319         assert(c2.at(2) == "two");
    320         assert(c2.at(3) == "three");
    321         assert(c2.at(4) == "four");
    322         assert(c2.hash_function() == Hash(1));
    323         assert(c2.key_eq() == Compare(1));
    324         assert(c2.get_allocator() == Alloc(1));
    325         assert(std::distance(c2.begin(), c2.end()) == c2.size());
    326         assert(std::distance(c2.cbegin(), c2.cend()) == c2.size());
    327         assert(c2.max_load_factor() == 1);
    328     }
    329     {
    330         typedef test_hash<std::hash<int> > Hash;
    331         typedef test_compare<std::equal_to<int> > Compare;
    332         typedef other_allocator<std::pair<const int, std::string> > Alloc;
    333         typedef std::unordered_map<int, std::string, Hash, Compare, Alloc> C;
    334         typedef std::pair<int, std::string> P;
    335         P a1[] =
    336         {
    337             P(1, "one"),
    338             P(2, "two"),
    339             P(3, "three"),
    340             P(4, "four"),
    341             P(1, "four"),
    342             P(2, "four"),
    343         };
    344         P a2[] =
    345         {
    346             P(10, "ten"),
    347             P(20, "twenty"),
    348             P(30, "thirty"),
    349             P(40, "forty"),
    350             P(50, "fifty"),
    351             P(60, "sixty"),
    352             P(70, "seventy"),
    353             P(80, "eighty"),
    354         };
    355         C c1(std::begin(a1), std::end(a1), 0, Hash(1), Compare(1), Alloc(1));
    356         C c2(std::begin(a2), std::end(a2), 0, Hash(2), Compare(2), Alloc(2));
    357         c2.max_load_factor(2);
    358         swap(c1, c2);
    359 
    360         assert(c1.bucket_count() >= 11);
    361         assert(c1.size() == 8);
    362         assert(c1.at(10) == "ten");
    363         assert(c1.at(20) == "twenty");
    364         assert(c1.at(30) == "thirty");
    365         assert(c1.at(40) == "forty");
    366         assert(c1.at(50) == "fifty");
    367         assert(c1.at(60) == "sixty");
    368         assert(c1.at(70) == "seventy");
    369         assert(c1.at(80) == "eighty");
    370         assert(c1.hash_function() == Hash(2));
    371         assert(c1.key_eq() == Compare(2));
    372         assert(c1.get_allocator() == Alloc(2));
    373         assert(std::distance(c1.begin(), c1.end()) == c1.size());
    374         assert(std::distance(c1.cbegin(), c1.cend()) == c1.size());
    375         assert(c1.max_load_factor() == 2);
    376 
    377         assert(c2.bucket_count() >= 5);
    378         assert(c2.size() == 4);
    379         assert(c2.at(1) == "one");
    380         assert(c2.at(2) == "two");
    381         assert(c2.at(3) == "three");
    382         assert(c2.at(4) == "four");
    383         assert(c2.hash_function() == Hash(1));
    384         assert(c2.key_eq() == Compare(1));
    385         assert(c2.get_allocator() == Alloc(1));
    386         assert(std::distance(c2.begin(), c2.end()) == c2.size());
    387         assert(std::distance(c2.cbegin(), c2.cend()) == c2.size());
    388         assert(c2.max_load_factor() == 1);
    389     }
    390 #if __cplusplus >= 201103L
    391     {
    392         typedef test_hash<std::hash<int> > Hash;
    393         typedef test_compare<std::equal_to<int> > Compare;
    394         typedef min_allocator<std::pair<const int, std::string> > Alloc;
    395         typedef std::unordered_map<int, std::string, Hash, Compare, Alloc> C;
    396         typedef std::pair<int, std::string> P;
    397         C c1(0, Hash(1), Compare(1), Alloc());
    398         C c2(0, Hash(2), Compare(2), Alloc());
    399         c2.max_load_factor(2);
    400         swap(c1, c2);
    401 
    402         assert(c1.bucket_count() == 0);
    403         assert(c1.size() == 0);
    404         assert(c1.hash_function() == Hash(2));
    405         assert(c1.key_eq() == Compare(2));
    406         assert(c1.get_allocator() == Alloc());
    407         assert(std::distance(c1.begin(), c1.end()) == c1.size());
    408         assert(std::distance(c1.cbegin(), c1.cend()) == c1.size());
    409         assert(c1.max_load_factor() == 2);
    410 
    411         assert(c2.bucket_count() == 0);
    412         assert(c2.size() == 0);
    413         assert(c2.hash_function() == Hash(1));
    414         assert(c2.key_eq() == Compare(1));
    415         assert(c2.get_allocator() == Alloc());
    416         assert(std::distance(c2.begin(), c2.end()) == c2.size());
    417         assert(std::distance(c2.cbegin(), c2.cend()) == c2.size());
    418         assert(c2.max_load_factor() == 1);
    419     }
    420     {
    421         typedef test_hash<std::hash<int> > Hash;
    422         typedef test_compare<std::equal_to<int> > Compare;
    423         typedef min_allocator<std::pair<const int, std::string> > Alloc;
    424         typedef std::unordered_map<int, std::string, Hash, Compare, Alloc> C;
    425         typedef std::pair<int, std::string> P;
    426         P a2[] =
    427         {
    428             P(10, "ten"),
    429             P(20, "twenty"),
    430             P(30, "thirty"),
    431             P(40, "forty"),
    432             P(50, "fifty"),
    433             P(60, "sixty"),
    434             P(70, "seventy"),
    435             P(80, "eighty"),
    436         };
    437         C c1(0, Hash(1), Compare(1), Alloc());
    438         C c2(std::begin(a2), std::end(a2), 0, Hash(2), Compare(2), Alloc());
    439         c2.max_load_factor(2);
    440         swap(c1, c2);
    441 
    442         assert(c1.bucket_count() >= 11);
    443         assert(c1.size() == 8);
    444         assert(c1.at(10) == "ten");
    445         assert(c1.at(20) == "twenty");
    446         assert(c1.at(30) == "thirty");
    447         assert(c1.at(40) == "forty");
    448         assert(c1.at(50) == "fifty");
    449         assert(c1.at(60) == "sixty");
    450         assert(c1.at(70) == "seventy");
    451         assert(c1.at(80) == "eighty");
    452         assert(c1.hash_function() == Hash(2));
    453         assert(c1.key_eq() == Compare(2));
    454         assert(c1.get_allocator() == Alloc());
    455         assert(std::distance(c1.begin(), c1.end()) == c1.size());
    456         assert(std::distance(c1.cbegin(), c1.cend()) == c1.size());
    457         assert(c1.max_load_factor() == 2);
    458 
    459         assert(c2.bucket_count() == 0);
    460         assert(c2.size() == 0);
    461         assert(c2.hash_function() == Hash(1));
    462         assert(c2.key_eq() == Compare(1));
    463         assert(c2.get_allocator() == Alloc());
    464         assert(std::distance(c2.begin(), c2.end()) == c2.size());
    465         assert(std::distance(c2.cbegin(), c2.cend()) == c2.size());
    466         assert(c2.max_load_factor() == 1);
    467     }
    468     {
    469         typedef test_hash<std::hash<int> > Hash;
    470         typedef test_compare<std::equal_to<int> > Compare;
    471         typedef min_allocator<std::pair<const int, std::string> > Alloc;
    472         typedef std::unordered_map<int, std::string, Hash, Compare, Alloc> C;
    473         typedef std::pair<int, std::string> P;
    474         P a1[] =
    475         {
    476             P(1, "one"),
    477             P(2, "two"),
    478             P(3, "three"),
    479             P(4, "four"),
    480             P(1, "four"),
    481             P(2, "four"),
    482         };
    483         C c1(std::begin(a1), std::end(a1), 0, Hash(1), Compare(1), Alloc());
    484         C c2(0, Hash(2), Compare(2), Alloc());
    485         c2.max_load_factor(2);
    486         swap(c1, c2);
    487 
    488         assert(c1.bucket_count() == 0);
    489         assert(c1.size() == 0);
    490         assert(c1.hash_function() == Hash(2));
    491         assert(c1.key_eq() == Compare(2));
    492         assert(c1.get_allocator() == Alloc());
    493         assert(std::distance(c1.begin(), c1.end()) == c1.size());
    494         assert(std::distance(c1.cbegin(), c1.cend()) == c1.size());
    495         assert(c1.max_load_factor() == 2);
    496 
    497         assert(c2.bucket_count() >= 5);
    498         assert(c2.size() == 4);
    499         assert(c2.at(1) == "one");
    500         assert(c2.at(2) == "two");
    501         assert(c2.at(3) == "three");
    502         assert(c2.at(4) == "four");
    503         assert(c2.hash_function() == Hash(1));
    504         assert(c2.key_eq() == Compare(1));
    505         assert(c2.get_allocator() == Alloc());
    506         assert(std::distance(c2.begin(), c2.end()) == c2.size());
    507         assert(std::distance(c2.cbegin(), c2.cend()) == c2.size());
    508         assert(c2.max_load_factor() == 1);
    509     }
    510     {
    511         typedef test_hash<std::hash<int> > Hash;
    512         typedef test_compare<std::equal_to<int> > Compare;
    513         typedef min_allocator<std::pair<const int, std::string> > Alloc;
    514         typedef std::unordered_map<int, std::string, Hash, Compare, Alloc> C;
    515         typedef std::pair<int, std::string> P;
    516         P a1[] =
    517         {
    518             P(1, "one"),
    519             P(2, "two"),
    520             P(3, "three"),
    521             P(4, "four"),
    522             P(1, "four"),
    523             P(2, "four"),
    524         };
    525         P a2[] =
    526         {
    527             P(10, "ten"),
    528             P(20, "twenty"),
    529             P(30, "thirty"),
    530             P(40, "forty"),
    531             P(50, "fifty"),
    532             P(60, "sixty"),
    533             P(70, "seventy"),
    534             P(80, "eighty"),
    535         };
    536         C c1(std::begin(a1), std::end(a1), 0, Hash(1), Compare(1), Alloc());
    537         C c2(std::begin(a2), std::end(a2), 0, Hash(2), Compare(2), Alloc());
    538         c2.max_load_factor(2);
    539         swap(c1, c2);
    540 
    541         assert(c1.bucket_count() >= 11);
    542         assert(c1.size() == 8);
    543         assert(c1.at(10) == "ten");
    544         assert(c1.at(20) == "twenty");
    545         assert(c1.at(30) == "thirty");
    546         assert(c1.at(40) == "forty");
    547         assert(c1.at(50) == "fifty");
    548         assert(c1.at(60) == "sixty");
    549         assert(c1.at(70) == "seventy");
    550         assert(c1.at(80) == "eighty");
    551         assert(c1.hash_function() == Hash(2));
    552         assert(c1.key_eq() == Compare(2));
    553         assert(c1.get_allocator() == Alloc());
    554         assert(std::distance(c1.begin(), c1.end()) == c1.size());
    555         assert(std::distance(c1.cbegin(), c1.cend()) == c1.size());
    556         assert(c1.max_load_factor() == 2);
    557 
    558         assert(c2.bucket_count() >= 5);
    559         assert(c2.size() == 4);
    560         assert(c2.at(1) == "one");
    561         assert(c2.at(2) == "two");
    562         assert(c2.at(3) == "three");
    563         assert(c2.at(4) == "four");
    564         assert(c2.hash_function() == Hash(1));
    565         assert(c2.key_eq() == Compare(1));
    566         assert(c2.get_allocator() == Alloc());
    567         assert(std::distance(c2.begin(), c2.end()) == c2.size());
    568         assert(std::distance(c2.cbegin(), c2.cend()) == c2.size());
    569         assert(c2.max_load_factor() == 1);
    570     }
    571 #endif
    572 }
    573