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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 InIter, class OutIter>
     13 //   requires OutputIterator<OutIter, RvalueOf<InIter::value_type>::type>
     14 //         && EqualityComparable<InIter::value_type>
     15 //         && HasAssign<InIter::value_type, InIter::reference>
     16 //         && Constructible<InIter::value_type, InIter::reference>
     17 //   OutIter
     18 //   unique_copy(InIter first, InIter last, OutIter result);
     19 
     20 #include <algorithm>
     21 #include <cassert>
     22 
     23 #include "test_iterators.h"
     24 
     25 template <class InIter, class OutIter>
     26 void
     27 test()
     28 {
     29     const int ia[] = {0};
     30     const unsigned sa = sizeof(ia)/sizeof(ia[0]);
     31     int ja[sa] = {-1};
     32     OutIter r = std::unique_copy(InIter(ia), InIter(ia+sa), OutIter(ja));
     33     assert(base(r) == ja + sa);
     34     assert(ja[0] == 0);
     35 
     36     const int ib[] = {0, 1};
     37     const unsigned sb = sizeof(ib)/sizeof(ib[0]);
     38     int jb[sb] = {-1};
     39     r = std::unique_copy(InIter(ib), InIter(ib+sb), OutIter(jb));
     40     assert(base(r) == jb + sb);
     41     assert(jb[0] == 0);
     42     assert(jb[1] == 1);
     43 
     44     const int ic[] = {0, 0};
     45     const unsigned sc = sizeof(ic)/sizeof(ic[0]);
     46     int jc[sc] = {-1};
     47     r = std::unique_copy(InIter(ic), InIter(ic+sc), OutIter(jc));
     48     assert(base(r) == jc + 1);
     49     assert(jc[0] == 0);
     50 
     51     const int id[] = {0, 0, 1};
     52     const unsigned sd = sizeof(id)/sizeof(id[0]);
     53     int jd[sd] = {-1};
     54     r = std::unique_copy(InIter(id), InIter(id+sd), OutIter(jd));
     55     assert(base(r) == jd + 2);
     56     assert(jd[0] == 0);
     57     assert(jd[1] == 1);
     58 
     59     const int ie[] = {0, 0, 1, 0};
     60     const unsigned se = sizeof(ie)/sizeof(ie[0]);
     61     int je[se] = {-1};
     62     r = std::unique_copy(InIter(ie), InIter(ie+se), OutIter(je));
     63     assert(base(r) == je + 3);
     64     assert(je[0] == 0);
     65     assert(je[1] == 1);
     66     assert(je[2] == 0);
     67 
     68     const int ig[] = {0, 0, 1, 1};
     69     const unsigned sg = sizeof(ig)/sizeof(ig[0]);
     70     int jg[sg] = {-1};
     71     r = std::unique_copy(InIter(ig), InIter(ig+sg), OutIter(jg));
     72     assert(base(r) == jg + 2);
     73     assert(jg[0] == 0);
     74     assert(jg[1] == 1);
     75 
     76     const int ih[] = {0, 1, 1};
     77     const unsigned sh = sizeof(ih)/sizeof(ih[0]);
     78     int jh[sh] = {-1};
     79     r = std::unique_copy(InIter(ih), InIter(ih+sh), OutIter(jh));
     80     assert(base(r) == jh + 2);
     81     assert(jh[0] == 0);
     82     assert(jh[1] == 1);
     83 
     84     const int ii[] = {0, 1, 1, 1, 2, 2, 2};
     85     const unsigned si = sizeof(ii)/sizeof(ii[0]);
     86     int ji[si] = {-1};
     87     r = std::unique_copy(InIter(ii), InIter(ii+si), OutIter(ji));
     88     assert(base(r) == ji + 3);
     89     assert(ji[0] == 0);
     90     assert(ji[1] == 1);
     91     assert(ji[2] == 2);
     92 }
     93 
     94 int main()
     95 {
     96     test<input_iterator<const int*>, output_iterator<int*> >();
     97     test<input_iterator<const int*>, forward_iterator<int*> >();
     98     test<input_iterator<const int*>, bidirectional_iterator<int*> >();
     99     test<input_iterator<const int*>, random_access_iterator<int*> >();
    100     test<input_iterator<const int*>, int*>();
    101 
    102     test<forward_iterator<const int*>, output_iterator<int*> >();
    103     test<forward_iterator<const int*>, forward_iterator<int*> >();
    104     test<forward_iterator<const int*>, bidirectional_iterator<int*> >();
    105     test<forward_iterator<const int*>, random_access_iterator<int*> >();
    106     test<forward_iterator<const int*>, int*>();
    107 
    108     test<bidirectional_iterator<const int*>, output_iterator<int*> >();
    109     test<bidirectional_iterator<const int*>, forward_iterator<int*> >();
    110     test<bidirectional_iterator<const int*>, bidirectional_iterator<int*> >();
    111     test<bidirectional_iterator<const int*>, random_access_iterator<int*> >();
    112     test<bidirectional_iterator<const int*>, int*>();
    113 
    114     test<random_access_iterator<const int*>, output_iterator<int*> >();
    115     test<random_access_iterator<const int*>, forward_iterator<int*> >();
    116     test<random_access_iterator<const int*>, bidirectional_iterator<int*> >();
    117     test<random_access_iterator<const int*>, random_access_iterator<int*> >();
    118     test<random_access_iterator<const int*>, int*>();
    119 
    120     test<const int*, output_iterator<int*> >();
    121     test<const int*, forward_iterator<int*> >();
    122     test<const int*, bidirectional_iterator<int*> >();
    123     test<const int*, random_access_iterator<int*> >();
    124     test<const int*, int*>();
    125 }
    126