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