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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>& assign(const charT* s);
     13 
     14 #include <string>
     15 #include <stdexcept>
     16 #include <cassert>
     17 
     18 #include "test_macros.h"
     19 #include "min_allocator.h"
     20 
     21 template <class S>
     22 void
     23 test(S s, const typename S::value_type* str, S expected)
     24 {
     25     s.assign(str);
     26     LIBCPP_ASSERT(s.__invariants());
     27     assert(s == expected);
     28 }
     29 
     30 int main()
     31 {
     32     {
     33     typedef std::string S;
     34     test(S(), "", S());
     35     test(S(), "12345", S("12345"));
     36     test(S(), "12345678901234567890", S("12345678901234567890"));
     37 
     38     test(S("12345"), "", S());
     39     test(S("12345"), "12345", S("12345"));
     40     test(S("12345"), "1234567890", S("1234567890"));
     41 
     42     test(S("12345678901234567890"), "", S());
     43     test(S("12345678901234567890"), "12345", S("12345"));
     44     test(S("12345678901234567890"), "12345678901234567890",
     45          S("12345678901234567890"));
     46     }
     47 #if TEST_STD_VER >= 11
     48     {
     49     typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
     50     test(S(), "", S());
     51     test(S(), "12345", S("12345"));
     52     test(S(), "12345678901234567890", S("12345678901234567890"));
     53 
     54     test(S("12345"), "", S());
     55     test(S("12345"), "12345", S("12345"));
     56     test(S("12345"), "1234567890", S("1234567890"));
     57 
     58     test(S("12345678901234567890"), "", S());
     59     test(S("12345678901234567890"), "12345", S("12345"));
     60     test(S("12345678901234567890"), "12345678901234567890",
     61          S("12345678901234567890"));
     62     }
     63 #endif
     64 }
     65