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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(const basic_string<charT,traits,Allocator>& str);
     13 
     14 #include <string>
     15 #include <cassert>
     16 
     17 #include "test_macros.h"
     18 #include "test_allocator.h"
     19 #include "min_allocator.h"
     20 
     21 template <class S>
     22 void
     23 test(S s1)
     24 {
     25     S s2 = s1;
     26     LIBCPP_ASSERT(s2.__invariants());
     27     assert(s2 == s1);
     28     assert(s2.capacity() >= s2.size());
     29     assert(s2.get_allocator() == s1.get_allocator());
     30 }
     31 
     32 int main()
     33 {
     34     {
     35     typedef test_allocator<char> A;
     36     typedef std::basic_string<char, std::char_traits<char>, A> S;
     37     test(S(A(3)));
     38     test(S("1", A(5)));
     39     test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7)));
     40     }
     41 #if TEST_STD_VER >= 11
     42     {
     43     typedef min_allocator<char> A;
     44     typedef std::basic_string<char, std::char_traits<char>, A> S;
     45     test(S(A{}));
     46     test(S("1", A()));
     47     test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A()));
     48     }
     49 #endif
     50 }
     51