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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, const charT* s);
     14 
     15 #include <stdio.h>
     16 
     17 #include <string>
     18 #include <stdexcept>
     19 #include <algorithm>
     20 #include <cassert>
     21 
     22 #include "min_allocator.h"
     23 
     24 template <class S>
     25 void
     26 test(S s, typename S::size_type pos, typename S::size_type n1,
     27      const typename S::value_type* str, S expected)
     28 {
     29     typename S::size_type old_size = s.size();
     30     S s0 = s;
     31     try
     32     {
     33         s.replace(pos, n1, str);
     34         assert(s.__invariants());
     35         assert(pos <= old_size);
     36         assert(s == expected);
     37         typename S::size_type xlen = std::min(n1, old_size - pos);
     38         typename S::size_type rlen = S::traits_type::length(str);
     39         assert(s.size() == old_size - xlen + rlen);
     40     }
     41     catch (std::out_of_range&)
     42     {
     43         assert(pos > old_size);
     44         assert(s == s0);
     45     }
     46 }
     47 
     48 template <class S>
     49 void test0()
     50 {
     51     test(S(""), 0, 0, "", S(""));
     52     test(S(""), 0, 0, "12345", S("12345"));
     53     test(S(""), 0, 0, "1234567890", S("1234567890"));
     54     test(S(""), 0, 0, "12345678901234567890", S("12345678901234567890"));
     55     test(S(""), 0, 1, "", S(""));
     56     test(S(""), 0, 1, "12345", S("12345"));
     57     test(S(""), 0, 1, "1234567890", S("1234567890"));
     58     test(S(""), 0, 1, "12345678901234567890", S("12345678901234567890"));
     59     test(S(""), 1, 0, "", S("can't happen"));
     60     test(S(""), 1, 0, "12345", S("can't happen"));
     61     test(S(""), 1, 0, "1234567890", S("can't happen"));
     62     test(S(""), 1, 0, "12345678901234567890", S("can't happen"));
     63     test(S("abcde"), 0, 0, "", S("abcde"));
     64     test(S("abcde"), 0, 0, "12345", S("12345abcde"));
     65     test(S("abcde"), 0, 0, "1234567890", S("1234567890abcde"));
     66     test(S("abcde"), 0, 0, "12345678901234567890", S("12345678901234567890abcde"));
     67     test(S("abcde"), 0, 1, "", S("bcde"));
     68     test(S("abcde"), 0, 1, "12345", S("12345bcde"));
     69     test(S("abcde"), 0, 1, "1234567890", S("1234567890bcde"));
     70     test(S("abcde"), 0, 1, "12345678901234567890", S("12345678901234567890bcde"));
     71     test(S("abcde"), 0, 2, "", S("cde"));
     72     test(S("abcde"), 0, 2, "12345", S("12345cde"));
     73     test(S("abcde"), 0, 2, "1234567890", S("1234567890cde"));
     74     test(S("abcde"), 0, 2, "12345678901234567890", S("12345678901234567890cde"));
     75     test(S("abcde"), 0, 4, "", S("e"));
     76     test(S("abcde"), 0, 4, "12345", S("12345e"));
     77     test(S("abcde"), 0, 4, "1234567890", S("1234567890e"));
     78     test(S("abcde"), 0, 4, "12345678901234567890", S("12345678901234567890e"));
     79     test(S("abcde"), 0, 5, "", S(""));
     80     test(S("abcde"), 0, 5, "12345", S("12345"));
     81     test(S("abcde"), 0, 5, "1234567890", S("1234567890"));
     82     test(S("abcde"), 0, 5, "12345678901234567890", S("12345678901234567890"));
     83     test(S("abcde"), 0, 6, "", S(""));
     84     test(S("abcde"), 0, 6, "12345", S("12345"));
     85     test(S("abcde"), 0, 6, "1234567890", S("1234567890"));
     86     test(S("abcde"), 0, 6, "12345678901234567890", S("12345678901234567890"));
     87     test(S("abcde"), 1, 0, "", S("abcde"));
     88     test(S("abcde"), 1, 0, "12345", S("a12345bcde"));
     89     test(S("abcde"), 1, 0, "1234567890", S("a1234567890bcde"));
     90     test(S("abcde"), 1, 0, "12345678901234567890", S("a12345678901234567890bcde"));
     91     test(S("abcde"), 1, 1, "", S("acde"));
     92     test(S("abcde"), 1, 1, "12345", S("a12345cde"));
     93     test(S("abcde"), 1, 1, "1234567890", S("a1234567890cde"));
     94     test(S("abcde"), 1, 1, "12345678901234567890", S("a12345678901234567890cde"));
     95     test(S("abcde"), 1, 2, "", S("ade"));
     96     test(S("abcde"), 1, 2, "12345", S("a12345de"));
     97     test(S("abcde"), 1, 2, "1234567890", S("a1234567890de"));
     98     test(S("abcde"), 1, 2, "12345678901234567890", S("a12345678901234567890de"));
     99     test(S("abcde"), 1, 3, "", S("ae"));
    100     test(S("abcde"), 1, 3, "12345", S("a12345e"));
    101     test(S("abcde"), 1, 3, "1234567890", S("a1234567890e"));
    102     test(S("abcde"), 1, 3, "12345678901234567890", S("a12345678901234567890e"));
    103     test(S("abcde"), 1, 4, "", S("a"));
    104     test(S("abcde"), 1, 4, "12345", S("a12345"));
    105     test(S("abcde"), 1, 4, "1234567890", S("a1234567890"));
    106     test(S("abcde"), 1, 4, "12345678901234567890", S("a12345678901234567890"));
    107     test(S("abcde"), 1, 5, "", S("a"));
    108     test(S("abcde"), 1, 5, "12345", S("a12345"));
    109     test(S("abcde"), 1, 5, "1234567890", S("a1234567890"));
    110     test(S("abcde"), 1, 5, "12345678901234567890", S("a12345678901234567890"));
    111     test(S("abcde"), 2, 0, "", S("abcde"));
    112     test(S("abcde"), 2, 0, "12345", S("ab12345cde"));
    113     test(S("abcde"), 2, 0, "1234567890", S("ab1234567890cde"));
    114     test(S("abcde"), 2, 0, "12345678901234567890", S("ab12345678901234567890cde"));
    115     test(S("abcde"), 2, 1, "", S("abde"));
    116     test(S("abcde"), 2, 1, "12345", S("ab12345de"));
    117     test(S("abcde"), 2, 1, "1234567890", S("ab1234567890de"));
    118     test(S("abcde"), 2, 1, "12345678901234567890", S("ab12345678901234567890de"));
    119     test(S("abcde"), 2, 2, "", S("abe"));
    120     test(S("abcde"), 2, 2, "12345", S("ab12345e"));
    121     test(S("abcde"), 2, 2, "1234567890", S("ab1234567890e"));
    122     test(S("abcde"), 2, 2, "12345678901234567890", S("ab12345678901234567890e"));
    123     test(S("abcde"), 2, 3, "", S("ab"));
    124     test(S("abcde"), 2, 3, "12345", S("ab12345"));
    125     test(S("abcde"), 2, 3, "1234567890", S("ab1234567890"));
    126     test(S("abcde"), 2, 3, "12345678901234567890", S("ab12345678901234567890"));
    127     test(S("abcde"), 2, 4, "", S("ab"));
    128     test(S("abcde"), 2, 4, "12345", S("ab12345"));
    129     test(S("abcde"), 2, 4, "1234567890", S("ab1234567890"));
    130     test(S("abcde"), 2, 4, "12345678901234567890", S("ab12345678901234567890"));
    131     test(S("abcde"), 4, 0, "", S("abcde"));
    132     test(S("abcde"), 4, 0, "12345", S("abcd12345e"));
    133     test(S("abcde"), 4, 0, "1234567890", S("abcd1234567890e"));
    134     test(S("abcde"), 4, 0, "12345678901234567890", S("abcd12345678901234567890e"));
    135     test(S("abcde"), 4, 1, "", S("abcd"));
    136     test(S("abcde"), 4, 1, "12345", S("abcd12345"));
    137     test(S("abcde"), 4, 1, "1234567890", S("abcd1234567890"));
    138     test(S("abcde"), 4, 1, "12345678901234567890", S("abcd12345678901234567890"));
    139     test(S("abcde"), 4, 2, "", S("abcd"));
    140     test(S("abcde"), 4, 2, "12345", S("abcd12345"));
    141     test(S("abcde"), 4, 2, "1234567890", S("abcd1234567890"));
    142     test(S("abcde"), 4, 2, "12345678901234567890", S("abcd12345678901234567890"));
    143     test(S("abcde"), 5, 0, "", S("abcde"));
    144     test(S("abcde"), 5, 0, "12345", S("abcde12345"));
    145     test(S("abcde"), 5, 0, "1234567890", S("abcde1234567890"));
    146     test(S("abcde"), 5, 0, "12345678901234567890", S("abcde12345678901234567890"));
    147     test(S("abcde"), 5, 1, "", S("abcde"));
    148     test(S("abcde"), 5, 1, "12345", S("abcde12345"));
    149     test(S("abcde"), 5, 1, "1234567890", S("abcde1234567890"));
    150     test(S("abcde"), 5, 1, "12345678901234567890", S("abcde12345678901234567890"));
    151 }
    152 
    153 template <class S>
    154 void test1()
    155 {
    156     test(S("abcde"), 6, 0, "", S("can't happen"));
    157     test(S("abcde"), 6, 0, "12345", S("can't happen"));
    158     test(S("abcde"), 6, 0, "1234567890", S("can't happen"));
    159     test(S("abcde"), 6, 0, "12345678901234567890", S("can't happen"));
    160     test(S("abcdefghij"), 0, 0, "", S("abcdefghij"));
    161     test(S("abcdefghij"), 0, 0, "12345", S("12345abcdefghij"));
    162     test(S("abcdefghij"), 0, 0, "1234567890", S("1234567890abcdefghij"));
    163     test(S("abcdefghij"), 0, 0, "12345678901234567890", S("12345678901234567890abcdefghij"));
    164     test(S("abcdefghij"), 0, 1, "", S("bcdefghij"));
    165     test(S("abcdefghij"), 0, 1, "12345", S("12345bcdefghij"));
    166     test(S("abcdefghij"), 0, 1, "1234567890", S("1234567890bcdefghij"));
    167     test(S("abcdefghij"), 0, 1, "12345678901234567890", S("12345678901234567890bcdefghij"));
    168     test(S("abcdefghij"), 0, 5, "", S("fghij"));
    169     test(S("abcdefghij"), 0, 5, "12345", S("12345fghij"));
    170     test(S("abcdefghij"), 0, 5, "1234567890", S("1234567890fghij"));
    171     test(S("abcdefghij"), 0, 5, "12345678901234567890", S("12345678901234567890fghij"));
    172     test(S("abcdefghij"), 0, 9, "", S("j"));
    173     test(S("abcdefghij"), 0, 9, "12345", S("12345j"));
    174     test(S("abcdefghij"), 0, 9, "1234567890", S("1234567890j"));
    175     test(S("abcdefghij"), 0, 9, "12345678901234567890", S("12345678901234567890j"));
    176     test(S("abcdefghij"), 0, 10, "", S(""));
    177     test(S("abcdefghij"), 0, 10, "12345", S("12345"));
    178     test(S("abcdefghij"), 0, 10, "1234567890", S("1234567890"));
    179     test(S("abcdefghij"), 0, 10, "12345678901234567890", S("12345678901234567890"));
    180     test(S("abcdefghij"), 0, 11, "", S(""));
    181     test(S("abcdefghij"), 0, 11, "12345", S("12345"));
    182     test(S("abcdefghij"), 0, 11, "1234567890", S("1234567890"));
    183     test(S("abcdefghij"), 0, 11, "12345678901234567890", S("12345678901234567890"));
    184     test(S("abcdefghij"), 1, 0, "", S("abcdefghij"));
    185     test(S("abcdefghij"), 1, 0, "12345", S("a12345bcdefghij"));
    186     test(S("abcdefghij"), 1, 0, "1234567890", S("a1234567890bcdefghij"));
    187     test(S("abcdefghij"), 1, 0, "12345678901234567890", S("a12345678901234567890bcdefghij"));
    188     test(S("abcdefghij"), 1, 1, "", S("acdefghij"));
    189     test(S("abcdefghij"), 1, 1, "12345", S("a12345cdefghij"));
    190     test(S("abcdefghij"), 1, 1, "1234567890", S("a1234567890cdefghij"));
    191     test(S("abcdefghij"), 1, 1, "12345678901234567890", S("a12345678901234567890cdefghij"));
    192     test(S("abcdefghij"), 1, 4, "", S("afghij"));
    193     test(S("abcdefghij"), 1, 4, "12345", S("a12345fghij"));
    194     test(S("abcdefghij"), 1, 4, "1234567890", S("a1234567890fghij"));
    195     test(S("abcdefghij"), 1, 4, "12345678901234567890", S("a12345678901234567890fghij"));
    196     test(S("abcdefghij"), 1, 8, "", S("aj"));
    197     test(S("abcdefghij"), 1, 8, "12345", S("a12345j"));
    198     test(S("abcdefghij"), 1, 8, "1234567890", S("a1234567890j"));
    199     test(S("abcdefghij"), 1, 8, "12345678901234567890", S("a12345678901234567890j"));
    200     test(S("abcdefghij"), 1, 9, "", S("a"));
    201     test(S("abcdefghij"), 1, 9, "12345", S("a12345"));
    202     test(S("abcdefghij"), 1, 9, "1234567890", S("a1234567890"));
    203     test(S("abcdefghij"), 1, 9, "12345678901234567890", S("a12345678901234567890"));
    204     test(S("abcdefghij"), 1, 10, "", S("a"));
    205     test(S("abcdefghij"), 1, 10, "12345", S("a12345"));
    206     test(S("abcdefghij"), 1, 10, "1234567890", S("a1234567890"));
    207     test(S("abcdefghij"), 1, 10, "12345678901234567890", S("a12345678901234567890"));
    208     test(S("abcdefghij"), 5, 0, "", S("abcdefghij"));
    209     test(S("abcdefghij"), 5, 0, "12345", S("abcde12345fghij"));
    210     test(S("abcdefghij"), 5, 0, "1234567890", S("abcde1234567890fghij"));
    211     test(S("abcdefghij"), 5, 0, "12345678901234567890", S("abcde12345678901234567890fghij"));
    212     test(S("abcdefghij"), 5, 1, "", S("abcdeghij"));
    213     test(S("abcdefghij"), 5, 1, "12345", S("abcde12345ghij"));
    214     test(S("abcdefghij"), 5, 1, "1234567890", S("abcde1234567890ghij"));
    215     test(S("abcdefghij"), 5, 1, "12345678901234567890", S("abcde12345678901234567890ghij"));
    216     test(S("abcdefghij"), 5, 2, "", S("abcdehij"));
    217     test(S("abcdefghij"), 5, 2, "12345", S("abcde12345hij"));
    218     test(S("abcdefghij"), 5, 2, "1234567890", S("abcde1234567890hij"));
    219     test(S("abcdefghij"), 5, 2, "12345678901234567890", S("abcde12345678901234567890hij"));
    220     test(S("abcdefghij"), 5, 4, "", S("abcdej"));
    221     test(S("abcdefghij"), 5, 4, "12345", S("abcde12345j"));
    222     test(S("abcdefghij"), 5, 4, "1234567890", S("abcde1234567890j"));
    223     test(S("abcdefghij"), 5, 4, "12345678901234567890", S("abcde12345678901234567890j"));
    224     test(S("abcdefghij"), 5, 5, "", S("abcde"));
    225     test(S("abcdefghij"), 5, 5, "12345", S("abcde12345"));
    226     test(S("abcdefghij"), 5, 5, "1234567890", S("abcde1234567890"));
    227     test(S("abcdefghij"), 5, 5, "12345678901234567890", S("abcde12345678901234567890"));
    228     test(S("abcdefghij"), 5, 6, "", S("abcde"));
    229     test(S("abcdefghij"), 5, 6, "12345", S("abcde12345"));
    230     test(S("abcdefghij"), 5, 6, "1234567890", S("abcde1234567890"));
    231     test(S("abcdefghij"), 5, 6, "12345678901234567890", S("abcde12345678901234567890"));
    232     test(S("abcdefghij"), 9, 0, "", S("abcdefghij"));
    233     test(S("abcdefghij"), 9, 0, "12345", S("abcdefghi12345j"));
    234     test(S("abcdefghij"), 9, 0, "1234567890", S("abcdefghi1234567890j"));
    235     test(S("abcdefghij"), 9, 0, "12345678901234567890", S("abcdefghi12345678901234567890j"));
    236     test(S("abcdefghij"), 9, 1, "", S("abcdefghi"));
    237     test(S("abcdefghij"), 9, 1, "12345", S("abcdefghi12345"));
    238     test(S("abcdefghij"), 9, 1, "1234567890", S("abcdefghi1234567890"));
    239     test(S("abcdefghij"), 9, 1, "12345678901234567890", S("abcdefghi12345678901234567890"));
    240     test(S("abcdefghij"), 9, 2, "", S("abcdefghi"));
    241     test(S("abcdefghij"), 9, 2, "12345", S("abcdefghi12345"));
    242     test(S("abcdefghij"), 9, 2, "1234567890", S("abcdefghi1234567890"));
    243     test(S("abcdefghij"), 9, 2, "12345678901234567890", S("abcdefghi12345678901234567890"));
    244     test(S("abcdefghij"), 10, 0, "", S("abcdefghij"));
    245     test(S("abcdefghij"), 10, 0, "12345", S("abcdefghij12345"));
    246     test(S("abcdefghij"), 10, 0, "1234567890", S("abcdefghij1234567890"));
    247     test(S("abcdefghij"), 10, 0, "12345678901234567890", S("abcdefghij12345678901234567890"));
    248     test(S("abcdefghij"), 10, 1, "", S("abcdefghij"));
    249     test(S("abcdefghij"), 10, 1, "12345", S("abcdefghij12345"));
    250     test(S("abcdefghij"), 10, 1, "1234567890", S("abcdefghij1234567890"));
    251     test(S("abcdefghij"), 10, 1, "12345678901234567890", S("abcdefghij12345678901234567890"));
    252     test(S("abcdefghij"), 11, 0, "", S("can't happen"));
    253     test(S("abcdefghij"), 11, 0, "12345", S("can't happen"));
    254     test(S("abcdefghij"), 11, 0, "1234567890", S("can't happen"));
    255     test(S("abcdefghij"), 11, 0, "12345678901234567890", S("can't happen"));
    256 }
    257 
    258 template <class S>
    259 void test2()
    260 {
    261     test(S("abcdefghijklmnopqrst"), 0, 0, "", S("abcdefghijklmnopqrst"));
    262     test(S("abcdefghijklmnopqrst"), 0, 0, "12345", S("12345abcdefghijklmnopqrst"));
    263     test(S("abcdefghijklmnopqrst"), 0, 0, "1234567890", S("1234567890abcdefghijklmnopqrst"));
    264     test(S("abcdefghijklmnopqrst"), 0, 0, "12345678901234567890", S("12345678901234567890abcdefghijklmnopqrst"));
    265     test(S("abcdefghijklmnopqrst"), 0, 1, "", S("bcdefghijklmnopqrst"));
    266     test(S("abcdefghijklmnopqrst"), 0, 1, "12345", S("12345bcdefghijklmnopqrst"));
    267     test(S("abcdefghijklmnopqrst"), 0, 1, "1234567890", S("1234567890bcdefghijklmnopqrst"));
    268     test(S("abcdefghijklmnopqrst"), 0, 1, "12345678901234567890", S("12345678901234567890bcdefghijklmnopqrst"));
    269     test(S("abcdefghijklmnopqrst"), 0, 10, "", S("klmnopqrst"));
    270     test(S("abcdefghijklmnopqrst"), 0, 10, "12345", S("12345klmnopqrst"));
    271     test(S("abcdefghijklmnopqrst"), 0, 10, "1234567890", S("1234567890klmnopqrst"));
    272     test(S("abcdefghijklmnopqrst"), 0, 10, "12345678901234567890", S("12345678901234567890klmnopqrst"));
    273     test(S("abcdefghijklmnopqrst"), 0, 19, "", S("t"));
    274     test(S("abcdefghijklmnopqrst"), 0, 19, "12345", S("12345t"));
    275     test(S("abcdefghijklmnopqrst"), 0, 19, "1234567890", S("1234567890t"));
    276     test(S("abcdefghijklmnopqrst"), 0, 19, "12345678901234567890", S("12345678901234567890t"));
    277     test(S("abcdefghijklmnopqrst"), 0, 20, "", S(""));
    278     test(S("abcdefghijklmnopqrst"), 0, 20, "12345", S("12345"));
    279     test(S("abcdefghijklmnopqrst"), 0, 20, "1234567890", S("1234567890"));
    280     test(S("abcdefghijklmnopqrst"), 0, 20, "12345678901234567890", S("12345678901234567890"));
    281     test(S("abcdefghijklmnopqrst"), 0, 21, "", S(""));
    282     test(S("abcdefghijklmnopqrst"), 0, 21, "12345", S("12345"));
    283     test(S("abcdefghijklmnopqrst"), 0, 21, "1234567890", S("1234567890"));
    284     test(S("abcdefghijklmnopqrst"), 0, 21, "12345678901234567890", S("12345678901234567890"));
    285     test(S("abcdefghijklmnopqrst"), 1, 0, "", S("abcdefghijklmnopqrst"));
    286     test(S("abcdefghijklmnopqrst"), 1, 0, "12345", S("a12345bcdefghijklmnopqrst"));
    287     test(S("abcdefghijklmnopqrst"), 1, 0, "1234567890", S("a1234567890bcdefghijklmnopqrst"));
    288     test(S("abcdefghijklmnopqrst"), 1, 0, "12345678901234567890", S("a12345678901234567890bcdefghijklmnopqrst"));
    289     test(S("abcdefghijklmnopqrst"), 1, 1, "", S("acdefghijklmnopqrst"));
    290     test(S("abcdefghijklmnopqrst"), 1, 1, "12345", S("a12345cdefghijklmnopqrst"));
    291     test(S("abcdefghijklmnopqrst"), 1, 1, "1234567890", S("a1234567890cdefghijklmnopqrst"));
    292     test(S("abcdefghijklmnopqrst"), 1, 1, "12345678901234567890", S("a12345678901234567890cdefghijklmnopqrst"));
    293     test(S("abcdefghijklmnopqrst"), 1, 9, "", S("aklmnopqrst"));
    294     test(S("abcdefghijklmnopqrst"), 1, 9, "12345", S("a12345klmnopqrst"));
    295     test(S("abcdefghijklmnopqrst"), 1, 9, "1234567890", S("a1234567890klmnopqrst"));
    296     test(S("abcdefghijklmnopqrst"), 1, 9, "12345678901234567890", S("a12345678901234567890klmnopqrst"));
    297     test(S("abcdefghijklmnopqrst"), 1, 18, "", S("at"));
    298     test(S("abcdefghijklmnopqrst"), 1, 18, "12345", S("a12345t"));
    299     test(S("abcdefghijklmnopqrst"), 1, 18, "1234567890", S("a1234567890t"));
    300     test(S("abcdefghijklmnopqrst"), 1, 18, "12345678901234567890", S("a12345678901234567890t"));
    301     test(S("abcdefghijklmnopqrst"), 1, 19, "", S("a"));
    302     test(S("abcdefghijklmnopqrst"), 1, 19, "12345", S("a12345"));
    303     test(S("abcdefghijklmnopqrst"), 1, 19, "1234567890", S("a1234567890"));
    304     test(S("abcdefghijklmnopqrst"), 1, 19, "12345678901234567890", S("a12345678901234567890"));
    305     test(S("abcdefghijklmnopqrst"), 1, 20, "", S("a"));
    306     test(S("abcdefghijklmnopqrst"), 1, 20, "12345", S("a12345"));
    307     test(S("abcdefghijklmnopqrst"), 1, 20, "1234567890", S("a1234567890"));
    308     test(S("abcdefghijklmnopqrst"), 1, 20, "12345678901234567890", S("a12345678901234567890"));
    309     test(S("abcdefghijklmnopqrst"), 10, 0, "", S("abcdefghijklmnopqrst"));
    310     test(S("abcdefghijklmnopqrst"), 10, 0, "12345", S("abcdefghij12345klmnopqrst"));
    311     test(S("abcdefghijklmnopqrst"), 10, 0, "1234567890", S("abcdefghij1234567890klmnopqrst"));
    312     test(S("abcdefghijklmnopqrst"), 10, 0, "12345678901234567890", S("abcdefghij12345678901234567890klmnopqrst"));
    313     test(S("abcdefghijklmnopqrst"), 10, 1, "", S("abcdefghijlmnopqrst"));
    314     test(S("abcdefghijklmnopqrst"), 10, 1, "12345", S("abcdefghij12345lmnopqrst"));
    315     test(S("abcdefghijklmnopqrst"), 10, 1, "1234567890", S("abcdefghij1234567890lmnopqrst"));
    316     test(S("abcdefghijklmnopqrst"), 10, 1, "12345678901234567890", S("abcdefghij12345678901234567890lmnopqrst"));
    317     test(S("abcdefghijklmnopqrst"), 10, 5, "", S("abcdefghijpqrst"));
    318     test(S("abcdefghijklmnopqrst"), 10, 5, "12345", S("abcdefghij12345pqrst"));
    319     test(S("abcdefghijklmnopqrst"), 10, 5, "1234567890", S("abcdefghij1234567890pqrst"));
    320     test(S("abcdefghijklmnopqrst"), 10, 5, "12345678901234567890", S("abcdefghij12345678901234567890pqrst"));
    321     test(S("abcdefghijklmnopqrst"), 10, 9, "", S("abcdefghijt"));
    322     test(S("abcdefghijklmnopqrst"), 10, 9, "12345", S("abcdefghij12345t"));
    323     test(S("abcdefghijklmnopqrst"), 10, 9, "1234567890", S("abcdefghij1234567890t"));
    324     test(S("abcdefghijklmnopqrst"), 10, 9, "12345678901234567890", S("abcdefghij12345678901234567890t"));
    325     test(S("abcdefghijklmnopqrst"), 10, 10, "", S("abcdefghij"));
    326     test(S("abcdefghijklmnopqrst"), 10, 10, "12345", S("abcdefghij12345"));
    327     test(S("abcdefghijklmnopqrst"), 10, 10, "1234567890", S("abcdefghij1234567890"));
    328     test(S("abcdefghijklmnopqrst"), 10, 10, "12345678901234567890", S("abcdefghij12345678901234567890"));
    329     test(S("abcdefghijklmnopqrst"), 10, 11, "", S("abcdefghij"));
    330     test(S("abcdefghijklmnopqrst"), 10, 11, "12345", S("abcdefghij12345"));
    331     test(S("abcdefghijklmnopqrst"), 10, 11, "1234567890", S("abcdefghij1234567890"));
    332     test(S("abcdefghijklmnopqrst"), 10, 11, "12345678901234567890", S("abcdefghij12345678901234567890"));
    333     test(S("abcdefghijklmnopqrst"), 19, 0, "", S("abcdefghijklmnopqrst"));
    334     test(S("abcdefghijklmnopqrst"), 19, 0, "12345", S("abcdefghijklmnopqrs12345t"));
    335     test(S("abcdefghijklmnopqrst"), 19, 0, "1234567890", S("abcdefghijklmnopqrs1234567890t"));
    336     test(S("abcdefghijklmnopqrst"), 19, 0, "12345678901234567890", S("abcdefghijklmnopqrs12345678901234567890t"));
    337     test(S("abcdefghijklmnopqrst"), 19, 1, "", S("abcdefghijklmnopqrs"));
    338     test(S("abcdefghijklmnopqrst"), 19, 1, "12345", S("abcdefghijklmnopqrs12345"));
    339     test(S("abcdefghijklmnopqrst"), 19, 1, "1234567890", S("abcdefghijklmnopqrs1234567890"));
    340     test(S("abcdefghijklmnopqrst"), 19, 1, "12345678901234567890", S("abcdefghijklmnopqrs12345678901234567890"));
    341     test(S("abcdefghijklmnopqrst"), 19, 2, "", S("abcdefghijklmnopqrs"));
    342     test(S("abcdefghijklmnopqrst"), 19, 2, "12345", S("abcdefghijklmnopqrs12345"));
    343     test(S("abcdefghijklmnopqrst"), 19, 2, "1234567890", S("abcdefghijklmnopqrs1234567890"));
    344     test(S("abcdefghijklmnopqrst"), 19, 2, "12345678901234567890", S("abcdefghijklmnopqrs12345678901234567890"));
    345     test(S("abcdefghijklmnopqrst"), 20, 0, "", S("abcdefghijklmnopqrst"));
    346     test(S("abcdefghijklmnopqrst"), 20, 0, "12345", S("abcdefghijklmnopqrst12345"));
    347     test(S("abcdefghijklmnopqrst"), 20, 0, "1234567890", S("abcdefghijklmnopqrst1234567890"));
    348     test(S("abcdefghijklmnopqrst"), 20, 0, "12345678901234567890", S("abcdefghijklmnopqrst12345678901234567890"));
    349     test(S("abcdefghijklmnopqrst"), 20, 1, "", S("abcdefghijklmnopqrst"));
    350     test(S("abcdefghijklmnopqrst"), 20, 1, "12345", S("abcdefghijklmnopqrst12345"));
    351     test(S("abcdefghijklmnopqrst"), 20, 1, "1234567890", S("abcdefghijklmnopqrst1234567890"));
    352     test(S("abcdefghijklmnopqrst"), 20, 1, "12345678901234567890", S("abcdefghijklmnopqrst12345678901234567890"));
    353     test(S("abcdefghijklmnopqrst"), 21, 0, "", S("can't happen"));
    354     test(S("abcdefghijklmnopqrst"), 21, 0, "12345", S("can't happen"));
    355     test(S("abcdefghijklmnopqrst"), 21, 0, "1234567890", S("can't happen"));
    356     test(S("abcdefghijklmnopqrst"), 21, 0, "12345678901234567890", S("can't happen"));
    357 }
    358 
    359 int main()
    360 {
    361     {
    362     typedef std::string S;
    363     test0<S>();
    364     test1<S>();
    365     test2<S>();
    366     }
    367 #if __cplusplus >= 201103L
    368     {
    369     typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
    370     test0<S>();
    371     test1<S>();
    372     test2<S>();
    373     }
    374 #endif
    375 }
    376