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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 // <algorithm>
     11 
     12 // template<InputIterator Iter1, InputIterator Iter2,
     13 //          Predicate<auto, Iter1::value_type, Iter2::value_type> Pred>
     14 //   requires CopyConstructible<Pred>
     15 //   pair<Iter1, Iter2>
     16 //   mismatch(Iter1 first1, Iter1 last1, Iter2 first2, Pred pred);
     17 
     18 #include <algorithm>
     19 #include <functional>
     20 #include <cassert>
     21 
     22 #include "test_iterators.h"
     23 
     24 int main()
     25 {
     26     int ia[] = {0, 1, 2, 2, 0, 1, 2, 3};
     27     const unsigned sa = sizeof(ia)/sizeof(ia[0]);
     28     int ib[] = {0, 1, 2, 3, 0, 1, 2, 3};
     29     assert(std::mismatch(input_iterator<const int*>(ia),
     30                          input_iterator<const int*>(ia + sa),
     31                          input_iterator<const int*>(ib),
     32                          std::equal_to<int>()) ==
     33                          (std::pair<input_iterator<const int*>,
     34                                     input_iterator<const int*> >(
     35                             input_iterator<const int*>(ia+3),
     36                             input_iterator<const int*>(ib+3))));
     37     assert(std::mismatch(ia, ia + sa, ib, std::equal_to<int>()) ==
     38            (std::pair<int*,int*>(ia+3,ib+3)));
     39 }
     40