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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 //   operator=(const basic_string<charT,traits,Allocator>& str);
     14 
     15 #include <string>
     16 #include <cassert>
     17 
     18 #include "min_allocator.h"
     19 
     20 template <class S>
     21 void
     22 test(S s1, const S& s2)
     23 {
     24     s1 = s2;
     25     assert(s1.__invariants());
     26     assert(s1 == s2);
     27     assert(s1.capacity() >= s1.size());
     28 }
     29 
     30 int main()
     31 {
     32     {
     33     typedef std::string S;
     34     test(S(), S());
     35     test(S("1"), S());
     36     test(S(), S("1"));
     37     test(S("1"), S("2"));
     38     test(S("1"), S("2"));
     39 
     40     test(S(),
     41          S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
     42     test(S("123456789"),
     43          S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
     44     test(S("1234567890123456789012345678901234567890123456789012345678901234567890"),
     45          S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
     46     test(S("1234567890123456789012345678901234567890123456789012345678901234567890"
     47            "1234567890123456789012345678901234567890123456789012345678901234567890"),
     48          S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
     49     }
     50 #if __cplusplus >= 201103L
     51     {
     52     typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
     53     test(S(), S());
     54     test(S("1"), S());
     55     test(S(), S("1"));
     56     test(S("1"), S("2"));
     57     test(S("1"), S("2"));
     58 
     59     test(S(),
     60          S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
     61     test(S("123456789"),
     62          S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
     63     test(S("1234567890123456789012345678901234567890123456789012345678901234567890"),
     64          S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
     65     test(S("1234567890123456789012345678901234567890123456789012345678901234567890"
     66            "1234567890123456789012345678901234567890123456789012345678901234567890"),
     67          S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
     68     }
     69 #endif
     70 }
     71