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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 // void resize(size_type n, charT c);
     13 
     14 #include <string>
     15 #include <stdexcept>
     16 #include <cassert>
     17 
     18 #include "min_allocator.h"
     19 
     20 template <class S>
     21 void
     22 test(S s, typename S::size_type n, typename S::value_type c, S expected)
     23 {
     24     try
     25     {
     26         s.resize(n, c);
     27         assert(s.__invariants());
     28         assert(n <= s.max_size());
     29         assert(s == expected);
     30     }
     31     catch (std::length_error&)
     32     {
     33         assert(n > s.max_size());
     34     }
     35 }
     36 
     37 int main()
     38 {
     39     {
     40     typedef std::string S;
     41     test(S(), 0, 'a', S());
     42     test(S(), 1, 'a', S("a"));
     43     test(S(), 10, 'a', S(10, 'a'));
     44     test(S(), 100, 'a', S(100, 'a'));
     45     test(S("12345"), 0, 'a', S());
     46     test(S("12345"), 2, 'a', S("12"));
     47     test(S("12345"), 5, 'a', S("12345"));
     48     test(S("12345"), 15, 'a', S("12345aaaaaaaaaa"));
     49     test(S("12345678901234567890123456789012345678901234567890"), 0, 'a', S());
     50     test(S("12345678901234567890123456789012345678901234567890"), 10, 'a',
     51          S("1234567890"));
     52     test(S("12345678901234567890123456789012345678901234567890"), 50, 'a',
     53          S("12345678901234567890123456789012345678901234567890"));
     54     test(S("12345678901234567890123456789012345678901234567890"), 60, 'a',
     55          S("12345678901234567890123456789012345678901234567890aaaaaaaaaa"));
     56     test(S(), S::npos, 'a', S("not going to happen"));
     57     }
     58 #if __cplusplus >= 201103L
     59     {
     60     typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
     61     test(S(), 0, 'a', S());
     62     test(S(), 1, 'a', S("a"));
     63     test(S(), 10, 'a', S(10, 'a'));
     64     test(S(), 100, 'a', S(100, 'a'));
     65     test(S("12345"), 0, 'a', S());
     66     test(S("12345"), 2, 'a', S("12"));
     67     test(S("12345"), 5, 'a', S("12345"));
     68     test(S("12345"), 15, 'a', S("12345aaaaaaaaaa"));
     69     test(S("12345678901234567890123456789012345678901234567890"), 0, 'a', S());
     70     test(S("12345678901234567890123456789012345678901234567890"), 10, 'a',
     71          S("1234567890"));
     72     test(S("12345678901234567890123456789012345678901234567890"), 50, 'a',
     73          S("12345678901234567890123456789012345678901234567890"));
     74     test(S("12345678901234567890123456789012345678901234567890"), 60, 'a',
     75          S("12345678901234567890123456789012345678901234567890aaaaaaaaaa"));
     76     test(S(), S::npos, 'a', S("not going to happen"));
     77     }
     78 #endif
     79 }
     80