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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 // <string>
     11 
     12 // basic_string<charT,traits,Allocator>&
     13 //   replace(size_type pos, size_type n1, size_type n2, charT c);
     14 
     15 #include <string>
     16 #include <stdexcept>
     17 #include <algorithm>
     18 #include <cassert>
     19 
     20 #include "min_allocator.h"
     21 
     22 template <class S>
     23 void
     24 test(S s, typename S::size_type pos, typename S::size_type n1,
     25      typename S::size_type n2, typename S::value_type c,
     26      S expected)
     27 {
     28     typename S::size_type old_size = s.size();
     29     S s0 = s;
     30     try
     31     {
     32         s.replace(pos, n1, n2, c);
     33         assert(s.__invariants());
     34         assert(pos <= old_size);
     35         assert(s == expected);
     36         typename S::size_type xlen = std::min(n1, old_size - pos);
     37         typename S::size_type rlen = n2;
     38         assert(s.size() == old_size - xlen + rlen);
     39     }
     40     catch (std::out_of_range&)
     41     {
     42         assert(pos > old_size);
     43         assert(s == s0);
     44     }
     45 }
     46 
     47 template <class S>
     48 void test0()
     49 {
     50     test(S(""), 0, 0, 0, '2', S(""));
     51     test(S(""), 0, 0, 5, '2', S("22222"));
     52     test(S(""), 0, 0, 10, '2', S("2222222222"));
     53     test(S(""), 0, 0, 20, '2', S("22222222222222222222"));
     54     test(S(""), 0, 1, 0, '2', S(""));
     55     test(S(""), 0, 1, 5, '2', S("22222"));
     56     test(S(""), 0, 1, 10, '2', S("2222222222"));
     57     test(S(""), 0, 1, 20, '2', S("22222222222222222222"));
     58     test(S(""), 1, 0, 0, '2', S("can't happen"));
     59     test(S(""), 1, 0, 5, '2', S("can't happen"));
     60     test(S(""), 1, 0, 10, '2', S("can't happen"));
     61     test(S(""), 1, 0, 20, '2', S("can't happen"));
     62     test(S("abcde"), 0, 0, 0, '2', S("abcde"));
     63     test(S("abcde"), 0, 0, 5, '2', S("22222abcde"));
     64     test(S("abcde"), 0, 0, 10, '2', S("2222222222abcde"));
     65     test(S("abcde"), 0, 0, 20, '2', S("22222222222222222222abcde"));
     66     test(S("abcde"), 0, 1, 0, '2', S("bcde"));
     67     test(S("abcde"), 0, 1, 5, '2', S("22222bcde"));
     68     test(S("abcde"), 0, 1, 10, '2', S("2222222222bcde"));
     69     test(S("abcde"), 0, 1, 20, '2', S("22222222222222222222bcde"));
     70     test(S("abcde"), 0, 2, 0, '2', S("cde"));
     71     test(S("abcde"), 0, 2, 5, '2', S("22222cde"));
     72     test(S("abcde"), 0, 2, 10, '2', S("2222222222cde"));
     73     test(S("abcde"), 0, 2, 20, '2', S("22222222222222222222cde"));
     74     test(S("abcde"), 0, 4, 0, '2', S("e"));
     75     test(S("abcde"), 0, 4, 5, '2', S("22222e"));
     76     test(S("abcde"), 0, 4, 10, '2', S("2222222222e"));
     77     test(S("abcde"), 0, 4, 20, '2', S("22222222222222222222e"));
     78     test(S("abcde"), 0, 5, 0, '2', S(""));
     79     test(S("abcde"), 0, 5, 5, '2', S("22222"));
     80     test(S("abcde"), 0, 5, 10, '2', S("2222222222"));
     81     test(S("abcde"), 0, 5, 20, '2', S("22222222222222222222"));
     82     test(S("abcde"), 0, 6, 0, '2', S(""));
     83     test(S("abcde"), 0, 6, 5, '2', S("22222"));
     84     test(S("abcde"), 0, 6, 10, '2', S("2222222222"));
     85     test(S("abcde"), 0, 6, 20, '2', S("22222222222222222222"));
     86     test(S("abcde"), 1, 0, 0, '2', S("abcde"));
     87     test(S("abcde"), 1, 0, 5, '2', S("a22222bcde"));
     88     test(S("abcde"), 1, 0, 10, '2', S("a2222222222bcde"));
     89     test(S("abcde"), 1, 0, 20, '2', S("a22222222222222222222bcde"));
     90     test(S("abcde"), 1, 1, 0, '2', S("acde"));
     91     test(S("abcde"), 1, 1, 5, '2', S("a22222cde"));
     92     test(S("abcde"), 1, 1, 10, '2', S("a2222222222cde"));
     93     test(S("abcde"), 1, 1, 20, '2', S("a22222222222222222222cde"));
     94     test(S("abcde"), 1, 2, 0, '2', S("ade"));
     95     test(S("abcde"), 1, 2, 5, '2', S("a22222de"));
     96     test(S("abcde"), 1, 2, 10, '2', S("a2222222222de"));
     97     test(S("abcde"), 1, 2, 20, '2', S("a22222222222222222222de"));
     98     test(S("abcde"), 1, 3, 0, '2', S("ae"));
     99     test(S("abcde"), 1, 3, 5, '2', S("a22222e"));
    100     test(S("abcde"), 1, 3, 10, '2', S("a2222222222e"));
    101     test(S("abcde"), 1, 3, 20, '2', S("a22222222222222222222e"));
    102     test(S("abcde"), 1, 4, 0, '2', S("a"));
    103     test(S("abcde"), 1, 4, 5, '2', S("a22222"));
    104     test(S("abcde"), 1, 4, 10, '2', S("a2222222222"));
    105     test(S("abcde"), 1, 4, 20, '2', S("a22222222222222222222"));
    106     test(S("abcde"), 1, 5, 0, '2', S("a"));
    107     test(S("abcde"), 1, 5, 5, '2', S("a22222"));
    108     test(S("abcde"), 1, 5, 10, '2', S("a2222222222"));
    109     test(S("abcde"), 1, 5, 20, '2', S("a22222222222222222222"));
    110     test(S("abcde"), 2, 0, 0, '2', S("abcde"));
    111     test(S("abcde"), 2, 0, 5, '2', S("ab22222cde"));
    112     test(S("abcde"), 2, 0, 10, '2', S("ab2222222222cde"));
    113     test(S("abcde"), 2, 0, 20, '2', S("ab22222222222222222222cde"));
    114     test(S("abcde"), 2, 1, 0, '2', S("abde"));
    115     test(S("abcde"), 2, 1, 5, '2', S("ab22222de"));
    116     test(S("abcde"), 2, 1, 10, '2', S("ab2222222222de"));
    117     test(S("abcde"), 2, 1, 20, '2', S("ab22222222222222222222de"));
    118     test(S("abcde"), 2, 2, 0, '2', S("abe"));
    119     test(S("abcde"), 2, 2, 5, '2', S("ab22222e"));
    120     test(S("abcde"), 2, 2, 10, '2', S("ab2222222222e"));
    121     test(S("abcde"), 2, 2, 20, '2', S("ab22222222222222222222e"));
    122     test(S("abcde"), 2, 3, 0, '2', S("ab"));
    123     test(S("abcde"), 2, 3, 5, '2', S("ab22222"));
    124     test(S("abcde"), 2, 3, 10, '2', S("ab2222222222"));
    125     test(S("abcde"), 2, 3, 20, '2', S("ab22222222222222222222"));
    126     test(S("abcde"), 2, 4, 0, '2', S("ab"));
    127     test(S("abcde"), 2, 4, 5, '2', S("ab22222"));
    128     test(S("abcde"), 2, 4, 10, '2', S("ab2222222222"));
    129     test(S("abcde"), 2, 4, 20, '2', S("ab22222222222222222222"));
    130     test(S("abcde"), 4, 0, 0, '2', S("abcde"));
    131     test(S("abcde"), 4, 0, 5, '2', S("abcd22222e"));
    132     test(S("abcde"), 4, 0, 10, '2', S("abcd2222222222e"));
    133     test(S("abcde"), 4, 0, 20, '2', S("abcd22222222222222222222e"));
    134     test(S("abcde"), 4, 1, 0, '2', S("abcd"));
    135     test(S("abcde"), 4, 1, 5, '2', S("abcd22222"));
    136     test(S("abcde"), 4, 1, 10, '2', S("abcd2222222222"));
    137     test(S("abcde"), 4, 1, 20, '2', S("abcd22222222222222222222"));
    138     test(S("abcde"), 4, 2, 0, '2', S("abcd"));
    139     test(S("abcde"), 4, 2, 5, '2', S("abcd22222"));
    140     test(S("abcde"), 4, 2, 10, '2', S("abcd2222222222"));
    141     test(S("abcde"), 4, 2, 20, '2', S("abcd22222222222222222222"));
    142     test(S("abcde"), 5, 0, 0, '2', S("abcde"));
    143     test(S("abcde"), 5, 0, 5, '2', S("abcde22222"));
    144     test(S("abcde"), 5, 0, 10, '2', S("abcde2222222222"));
    145     test(S("abcde"), 5, 0, 20, '2', S("abcde22222222222222222222"));
    146     test(S("abcde"), 5, 1, 0, '2', S("abcde"));
    147     test(S("abcde"), 5, 1, 5, '2', S("abcde22222"));
    148     test(S("abcde"), 5, 1, 10, '2', S("abcde2222222222"));
    149     test(S("abcde"), 5, 1, 20, '2', S("abcde22222222222222222222"));
    150 }
    151 
    152 template <class S>
    153 void test1()
    154 {
    155     test(S("abcde"), 6, 0, 0, '2', S("can't happen"));
    156     test(S("abcde"), 6, 0, 5, '2', S("can't happen"));
    157     test(S("abcde"), 6, 0, 10, '2', S("can't happen"));
    158     test(S("abcde"), 6, 0, 20, '2', S("can't happen"));
    159     test(S("abcdefghij"), 0, 0, 0, '2', S("abcdefghij"));
    160     test(S("abcdefghij"), 0, 0, 5, '2', S("22222abcdefghij"));
    161     test(S("abcdefghij"), 0, 0, 10, '2', S("2222222222abcdefghij"));
    162     test(S("abcdefghij"), 0, 0, 20, '2', S("22222222222222222222abcdefghij"));
    163     test(S("abcdefghij"), 0, 1, 0, '2', S("bcdefghij"));
    164     test(S("abcdefghij"), 0, 1, 5, '2', S("22222bcdefghij"));
    165     test(S("abcdefghij"), 0, 1, 10, '2', S("2222222222bcdefghij"));
    166     test(S("abcdefghij"), 0, 1, 20, '2', S("22222222222222222222bcdefghij"));
    167     test(S("abcdefghij"), 0, 5, 0, '2', S("fghij"));
    168     test(S("abcdefghij"), 0, 5, 5, '2', S("22222fghij"));
    169     test(S("abcdefghij"), 0, 5, 10, '2', S("2222222222fghij"));
    170     test(S("abcdefghij"), 0, 5, 20, '2', S("22222222222222222222fghij"));
    171     test(S("abcdefghij"), 0, 9, 0, '2', S("j"));
    172     test(S("abcdefghij"), 0, 9, 5, '2', S("22222j"));
    173     test(S("abcdefghij"), 0, 9, 10, '2', S("2222222222j"));
    174     test(S("abcdefghij"), 0, 9, 20, '2', S("22222222222222222222j"));
    175     test(S("abcdefghij"), 0, 10, 0, '2', S(""));
    176     test(S("abcdefghij"), 0, 10, 5, '2', S("22222"));
    177     test(S("abcdefghij"), 0, 10, 10, '2', S("2222222222"));
    178     test(S("abcdefghij"), 0, 10, 20, '2', S("22222222222222222222"));
    179     test(S("abcdefghij"), 0, 11, 0, '2', S(""));
    180     test(S("abcdefghij"), 0, 11, 5, '2', S("22222"));
    181     test(S("abcdefghij"), 0, 11, 10, '2', S("2222222222"));
    182     test(S("abcdefghij"), 0, 11, 20, '2', S("22222222222222222222"));
    183     test(S("abcdefghij"), 1, 0, 0, '2', S("abcdefghij"));
    184     test(S("abcdefghij"), 1, 0, 5, '2', S("a22222bcdefghij"));
    185     test(S("abcdefghij"), 1, 0, 10, '2', S("a2222222222bcdefghij"));
    186     test(S("abcdefghij"), 1, 0, 20, '2', S("a22222222222222222222bcdefghij"));
    187     test(S("abcdefghij"), 1, 1, 0, '2', S("acdefghij"));
    188     test(S("abcdefghij"), 1, 1, 5, '2', S("a22222cdefghij"));
    189     test(S("abcdefghij"), 1, 1, 10, '2', S("a2222222222cdefghij"));
    190     test(S("abcdefghij"), 1, 1, 20, '2', S("a22222222222222222222cdefghij"));
    191     test(S("abcdefghij"), 1, 4, 0, '2', S("afghij"));
    192     test(S("abcdefghij"), 1, 4, 5, '2', S("a22222fghij"));
    193     test(S("abcdefghij"), 1, 4, 10, '2', S("a2222222222fghij"));
    194     test(S("abcdefghij"), 1, 4, 20, '2', S("a22222222222222222222fghij"));
    195     test(S("abcdefghij"), 1, 8, 0, '2', S("aj"));
    196     test(S("abcdefghij"), 1, 8, 5, '2', S("a22222j"));
    197     test(S("abcdefghij"), 1, 8, 10, '2', S("a2222222222j"));
    198     test(S("abcdefghij"), 1, 8, 20, '2', S("a22222222222222222222j"));
    199     test(S("abcdefghij"), 1, 9, 0, '2', S("a"));
    200     test(S("abcdefghij"), 1, 9, 5, '2', S("a22222"));
    201     test(S("abcdefghij"), 1, 9, 10, '2', S("a2222222222"));
    202     test(S("abcdefghij"), 1, 9, 20, '2', S("a22222222222222222222"));
    203     test(S("abcdefghij"), 1, 10, 0, '2', S("a"));
    204     test(S("abcdefghij"), 1, 10, 5, '2', S("a22222"));
    205     test(S("abcdefghij"), 1, 10, 10, '2', S("a2222222222"));
    206     test(S("abcdefghij"), 1, 10, 20, '2', S("a22222222222222222222"));
    207     test(S("abcdefghij"), 5, 0, 0, '2', S("abcdefghij"));
    208     test(S("abcdefghij"), 5, 0, 5, '2', S("abcde22222fghij"));
    209     test(S("abcdefghij"), 5, 0, 10, '2', S("abcde2222222222fghij"));
    210     test(S("abcdefghij"), 5, 0, 20, '2', S("abcde22222222222222222222fghij"));
    211     test(S("abcdefghij"), 5, 1, 0, '2', S("abcdeghij"));
    212     test(S("abcdefghij"), 5, 1, 5, '2', S("abcde22222ghij"));
    213     test(S("abcdefghij"), 5, 1, 10, '2', S("abcde2222222222ghij"));
    214     test(S("abcdefghij"), 5, 1, 20, '2', S("abcde22222222222222222222ghij"));
    215     test(S("abcdefghij"), 5, 2, 0, '2', S("abcdehij"));
    216     test(S("abcdefghij"), 5, 2, 5, '2', S("abcde22222hij"));
    217     test(S("abcdefghij"), 5, 2, 10, '2', S("abcde2222222222hij"));
    218     test(S("abcdefghij"), 5, 2, 20, '2', S("abcde22222222222222222222hij"));
    219     test(S("abcdefghij"), 5, 4, 0, '2', S("abcdej"));
    220     test(S("abcdefghij"), 5, 4, 5, '2', S("abcde22222j"));
    221     test(S("abcdefghij"), 5, 4, 10, '2', S("abcde2222222222j"));
    222     test(S("abcdefghij"), 5, 4, 20, '2', S("abcde22222222222222222222j"));
    223     test(S("abcdefghij"), 5, 5, 0, '2', S("abcde"));
    224     test(S("abcdefghij"), 5, 5, 5, '2', S("abcde22222"));
    225     test(S("abcdefghij"), 5, 5, 10, '2', S("abcde2222222222"));
    226     test(S("abcdefghij"), 5, 5, 20, '2', S("abcde22222222222222222222"));
    227     test(S("abcdefghij"), 5, 6, 0, '2', S("abcde"));
    228     test(S("abcdefghij"), 5, 6, 5, '2', S("abcde22222"));
    229     test(S("abcdefghij"), 5, 6, 10, '2', S("abcde2222222222"));
    230     test(S("abcdefghij"), 5, 6, 20, '2', S("abcde22222222222222222222"));
    231     test(S("abcdefghij"), 9, 0, 0, '2', S("abcdefghij"));
    232     test(S("abcdefghij"), 9, 0, 5, '2', S("abcdefghi22222j"));
    233     test(S("abcdefghij"), 9, 0, 10, '2', S("abcdefghi2222222222j"));
    234     test(S("abcdefghij"), 9, 0, 20, '2', S("abcdefghi22222222222222222222j"));
    235     test(S("abcdefghij"), 9, 1, 0, '2', S("abcdefghi"));
    236     test(S("abcdefghij"), 9, 1, 5, '2', S("abcdefghi22222"));
    237     test(S("abcdefghij"), 9, 1, 10, '2', S("abcdefghi2222222222"));
    238     test(S("abcdefghij"), 9, 1, 20, '2', S("abcdefghi22222222222222222222"));
    239     test(S("abcdefghij"), 9, 2, 0, '2', S("abcdefghi"));
    240     test(S("abcdefghij"), 9, 2, 5, '2', S("abcdefghi22222"));
    241     test(S("abcdefghij"), 9, 2, 10, '2', S("abcdefghi2222222222"));
    242     test(S("abcdefghij"), 9, 2, 20, '2', S("abcdefghi22222222222222222222"));
    243     test(S("abcdefghij"), 10, 0, 0, '2', S("abcdefghij"));
    244     test(S("abcdefghij"), 10, 0, 5, '2', S("abcdefghij22222"));
    245     test(S("abcdefghij"), 10, 0, 10, '2', S("abcdefghij2222222222"));
    246     test(S("abcdefghij"), 10, 0, 20, '2', S("abcdefghij22222222222222222222"));
    247     test(S("abcdefghij"), 10, 1, 0, '2', S("abcdefghij"));
    248     test(S("abcdefghij"), 10, 1, 5, '2', S("abcdefghij22222"));
    249     test(S("abcdefghij"), 10, 1, 10, '2', S("abcdefghij2222222222"));
    250     test(S("abcdefghij"), 10, 1, 20, '2', S("abcdefghij22222222222222222222"));
    251     test(S("abcdefghij"), 11, 0, 0, '2', S("can't happen"));
    252     test(S("abcdefghij"), 11, 0, 5, '2', S("can't happen"));
    253     test(S("abcdefghij"), 11, 0, 10, '2', S("can't happen"));
    254     test(S("abcdefghij"), 11, 0, 20, '2', S("can't happen"));
    255 }
    256 
    257 template <class S>
    258 void test2()
    259 {
    260     test(S("abcdefghijklmnopqrst"), 0, 0, 0, '2', S("abcdefghijklmnopqrst"));
    261     test(S("abcdefghijklmnopqrst"), 0, 0, 5, '2', S("22222abcdefghijklmnopqrst"));
    262     test(S("abcdefghijklmnopqrst"), 0, 0, 10, '2', S("2222222222abcdefghijklmnopqrst"));
    263     test(S("abcdefghijklmnopqrst"), 0, 0, 20, '2', S("22222222222222222222abcdefghijklmnopqrst"));
    264     test(S("abcdefghijklmnopqrst"), 0, 1, 0, '2', S("bcdefghijklmnopqrst"));
    265     test(S("abcdefghijklmnopqrst"), 0, 1, 5, '2', S("22222bcdefghijklmnopqrst"));
    266     test(S("abcdefghijklmnopqrst"), 0, 1, 10, '2', S("2222222222bcdefghijklmnopqrst"));
    267     test(S("abcdefghijklmnopqrst"), 0, 1, 20, '2', S("22222222222222222222bcdefghijklmnopqrst"));
    268     test(S("abcdefghijklmnopqrst"), 0, 10, 0, '2', S("klmnopqrst"));
    269     test(S("abcdefghijklmnopqrst"), 0, 10, 5, '2', S("22222klmnopqrst"));
    270     test(S("abcdefghijklmnopqrst"), 0, 10, 10, '2', S("2222222222klmnopqrst"));
    271     test(S("abcdefghijklmnopqrst"), 0, 10, 20, '2', S("22222222222222222222klmnopqrst"));
    272     test(S("abcdefghijklmnopqrst"), 0, 19, 0, '2', S("t"));
    273     test(S("abcdefghijklmnopqrst"), 0, 19, 5, '2', S("22222t"));
    274     test(S("abcdefghijklmnopqrst"), 0, 19, 10, '2', S("2222222222t"));
    275     test(S("abcdefghijklmnopqrst"), 0, 19, 20, '2', S("22222222222222222222t"));
    276     test(S("abcdefghijklmnopqrst"), 0, 20, 0, '2', S(""));
    277     test(S("abcdefghijklmnopqrst"), 0, 20, 5, '2', S("22222"));
    278     test(S("abcdefghijklmnopqrst"), 0, 20, 10, '2', S("2222222222"));
    279     test(S("abcdefghijklmnopqrst"), 0, 20, 20, '2', S("22222222222222222222"));
    280     test(S("abcdefghijklmnopqrst"), 0, 21, 0, '2', S(""));
    281     test(S("abcdefghijklmnopqrst"), 0, 21, 5, '2', S("22222"));
    282     test(S("abcdefghijklmnopqrst"), 0, 21, 10, '2', S("2222222222"));
    283     test(S("abcdefghijklmnopqrst"), 0, 21, 20, '2', S("22222222222222222222"));
    284     test(S("abcdefghijklmnopqrst"), 1, 0, 0, '2', S("abcdefghijklmnopqrst"));
    285     test(S("abcdefghijklmnopqrst"), 1, 0, 5, '2', S("a22222bcdefghijklmnopqrst"));
    286     test(S("abcdefghijklmnopqrst"), 1, 0, 10, '2', S("a2222222222bcdefghijklmnopqrst"));
    287     test(S("abcdefghijklmnopqrst"), 1, 0, 20, '2', S("a22222222222222222222bcdefghijklmnopqrst"));
    288     test(S("abcdefghijklmnopqrst"), 1, 1, 0, '2', S("acdefghijklmnopqrst"));
    289     test(S("abcdefghijklmnopqrst"), 1, 1, 5, '2', S("a22222cdefghijklmnopqrst"));
    290     test(S("abcdefghijklmnopqrst"), 1, 1, 10, '2', S("a2222222222cdefghijklmnopqrst"));
    291     test(S("abcdefghijklmnopqrst"), 1, 1, 20, '2', S("a22222222222222222222cdefghijklmnopqrst"));
    292     test(S("abcdefghijklmnopqrst"), 1, 9, 0, '2', S("aklmnopqrst"));
    293     test(S("abcdefghijklmnopqrst"), 1, 9, 5, '2', S("a22222klmnopqrst"));
    294     test(S("abcdefghijklmnopqrst"), 1, 9, 10, '2', S("a2222222222klmnopqrst"));
    295     test(S("abcdefghijklmnopqrst"), 1, 9, 20, '2', S("a22222222222222222222klmnopqrst"));
    296     test(S("abcdefghijklmnopqrst"), 1, 18, 0, '2', S("at"));
    297     test(S("abcdefghijklmnopqrst"), 1, 18, 5, '2', S("a22222t"));
    298     test(S("abcdefghijklmnopqrst"), 1, 18, 10, '2', S("a2222222222t"));
    299     test(S("abcdefghijklmnopqrst"), 1, 18, 20, '2', S("a22222222222222222222t"));
    300     test(S("abcdefghijklmnopqrst"), 1, 19, 0, '2', S("a"));
    301     test(S("abcdefghijklmnopqrst"), 1, 19, 5, '2', S("a22222"));
    302     test(S("abcdefghijklmnopqrst"), 1, 19, 10, '2', S("a2222222222"));
    303     test(S("abcdefghijklmnopqrst"), 1, 19, 20, '2', S("a22222222222222222222"));
    304     test(S("abcdefghijklmnopqrst"), 1, 20, 0, '2', S("a"));
    305     test(S("abcdefghijklmnopqrst"), 1, 20, 5, '2', S("a22222"));
    306     test(S("abcdefghijklmnopqrst"), 1, 20, 10, '2', S("a2222222222"));
    307     test(S("abcdefghijklmnopqrst"), 1, 20, 20, '2', S("a22222222222222222222"));
    308     test(S("abcdefghijklmnopqrst"), 10, 0, 0, '2', S("abcdefghijklmnopqrst"));
    309     test(S("abcdefghijklmnopqrst"), 10, 0, 5, '2', S("abcdefghij22222klmnopqrst"));
    310     test(S("abcdefghijklmnopqrst"), 10, 0, 10, '2', S("abcdefghij2222222222klmnopqrst"));
    311     test(S("abcdefghijklmnopqrst"), 10, 0, 20, '2', S("abcdefghij22222222222222222222klmnopqrst"));
    312     test(S("abcdefghijklmnopqrst"), 10, 1, 0, '2', S("abcdefghijlmnopqrst"));
    313     test(S("abcdefghijklmnopqrst"), 10, 1, 5, '2', S("abcdefghij22222lmnopqrst"));
    314     test(S("abcdefghijklmnopqrst"), 10, 1, 10, '2', S("abcdefghij2222222222lmnopqrst"));
    315     test(S("abcdefghijklmnopqrst"), 10, 1, 20, '2', S("abcdefghij22222222222222222222lmnopqrst"));
    316     test(S("abcdefghijklmnopqrst"), 10, 5, 0, '2', S("abcdefghijpqrst"));
    317     test(S("abcdefghijklmnopqrst"), 10, 5, 5, '2', S("abcdefghij22222pqrst"));
    318     test(S("abcdefghijklmnopqrst"), 10, 5, 10, '2', S("abcdefghij2222222222pqrst"));
    319     test(S("abcdefghijklmnopqrst"), 10, 5, 20, '2', S("abcdefghij22222222222222222222pqrst"));
    320     test(S("abcdefghijklmnopqrst"), 10, 9, 0, '2', S("abcdefghijt"));
    321     test(S("abcdefghijklmnopqrst"), 10, 9, 5, '2', S("abcdefghij22222t"));
    322     test(S("abcdefghijklmnopqrst"), 10, 9, 10, '2', S("abcdefghij2222222222t"));
    323     test(S("abcdefghijklmnopqrst"), 10, 9, 20, '2', S("abcdefghij22222222222222222222t"));
    324     test(S("abcdefghijklmnopqrst"), 10, 10, 0, '2', S("abcdefghij"));
    325     test(S("abcdefghijklmnopqrst"), 10, 10, 5, '2', S("abcdefghij22222"));
    326     test(S("abcdefghijklmnopqrst"), 10, 10, 10, '2', S("abcdefghij2222222222"));
    327     test(S("abcdefghijklmnopqrst"), 10, 10, 20, '2', S("abcdefghij22222222222222222222"));
    328     test(S("abcdefghijklmnopqrst"), 10, 11, 0, '2', S("abcdefghij"));
    329     test(S("abcdefghijklmnopqrst"), 10, 11, 5, '2', S("abcdefghij22222"));
    330     test(S("abcdefghijklmnopqrst"), 10, 11, 10, '2', S("abcdefghij2222222222"));
    331     test(S("abcdefghijklmnopqrst"), 10, 11, 20, '2', S("abcdefghij22222222222222222222"));
    332     test(S("abcdefghijklmnopqrst"), 19, 0, 0, '2', S("abcdefghijklmnopqrst"));
    333     test(S("abcdefghijklmnopqrst"), 19, 0, 5, '2', S("abcdefghijklmnopqrs22222t"));
    334     test(S("abcdefghijklmnopqrst"), 19, 0, 10, '2', S("abcdefghijklmnopqrs2222222222t"));
    335     test(S("abcdefghijklmnopqrst"), 19, 0, 20, '2', S("abcdefghijklmnopqrs22222222222222222222t"));
    336     test(S("abcdefghijklmnopqrst"), 19, 1, 0, '2', S("abcdefghijklmnopqrs"));
    337     test(S("abcdefghijklmnopqrst"), 19, 1, 5, '2', S("abcdefghijklmnopqrs22222"));
    338     test(S("abcdefghijklmnopqrst"), 19, 1, 10, '2', S("abcdefghijklmnopqrs2222222222"));
    339     test(S("abcdefghijklmnopqrst"), 19, 1, 20, '2', S("abcdefghijklmnopqrs22222222222222222222"));
    340     test(S("abcdefghijklmnopqrst"), 19, 2, 0, '2', S("abcdefghijklmnopqrs"));
    341     test(S("abcdefghijklmnopqrst"), 19, 2, 5, '2', S("abcdefghijklmnopqrs22222"));
    342     test(S("abcdefghijklmnopqrst"), 19, 2, 10, '2', S("abcdefghijklmnopqrs2222222222"));
    343     test(S("abcdefghijklmnopqrst"), 19, 2, 20, '2', S("abcdefghijklmnopqrs22222222222222222222"));
    344     test(S("abcdefghijklmnopqrst"), 20, 0, 0, '2', S("abcdefghijklmnopqrst"));
    345     test(S("abcdefghijklmnopqrst"), 20, 0, 5, '2', S("abcdefghijklmnopqrst22222"));
    346     test(S("abcdefghijklmnopqrst"), 20, 0, 10, '2', S("abcdefghijklmnopqrst2222222222"));
    347     test(S("abcdefghijklmnopqrst"), 20, 0, 20, '2', S("abcdefghijklmnopqrst22222222222222222222"));
    348     test(S("abcdefghijklmnopqrst"), 20, 1, 0, '2', S("abcdefghijklmnopqrst"));
    349     test(S("abcdefghijklmnopqrst"), 20, 1, 5, '2', S("abcdefghijklmnopqrst22222"));
    350     test(S("abcdefghijklmnopqrst"), 20, 1, 10, '2', S("abcdefghijklmnopqrst2222222222"));
    351     test(S("abcdefghijklmnopqrst"), 20, 1, 20, '2', S("abcdefghijklmnopqrst22222222222222222222"));
    352     test(S("abcdefghijklmnopqrst"), 21, 0, 0, '2', S("can't happen"));
    353     test(S("abcdefghijklmnopqrst"), 21, 0, 5, '2', S("can't happen"));
    354     test(S("abcdefghijklmnopqrst"), 21, 0, 10, '2', S("can't happen"));
    355     test(S("abcdefghijklmnopqrst"), 21, 0, 20, '2', S("can't happen"));
    356 }
    357 
    358 int main()
    359 {
    360     {
    361     typedef std::string S;
    362     test0<S>();
    363     test1<S>();
    364     test2<S>();
    365     }
    366 #if __cplusplus >= 201103L
    367     {
    368     typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
    369     test0<S>();
    370     test1<S>();
    371     test2<S>();
    372     }
    373 #endif
    374 }
    375