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 // requires HasLess<Iter1::value_type, Iter2::value_type> 14 // && HasLess<Iter2::value_type, Iter1::value_type> 15 // bool 16 // lexicographical_compare(Iter1 first1, Iter1 last1, Iter2 first2, Iter2 last2); 17 18 #include <algorithm> 19 #include <cassert> 20 21 #include "test_iterators.h" 22 23 template <class Iter1, class Iter2> 24 void 25 test() 26 { 27 int ia[] = {1, 2, 3, 4}; 28 const unsigned sa = sizeof(ia)/sizeof(ia[0]); 29 int ib[] = {1, 2, 3}; 30 assert(!std::lexicographical_compare(ia, ia+sa, ib, ib+2)); 31 assert(std::lexicographical_compare(ib, ib+2, ia, ia+sa)); 32 assert(!std::lexicographical_compare(ia, ia+sa, ib, ib+3)); 33 assert(std::lexicographical_compare(ib, ib+3, ia, ia+sa)); 34 assert(std::lexicographical_compare(ia, ia+sa, ib+1, ib+3)); 35 assert(!std::lexicographical_compare(ib+1, ib+3, ia, ia+sa)); 36 } 37 38 int main() 39 { 40 test<input_iterator<const int*>, input_iterator<const int*> >(); 41 test<input_iterator<const int*>, forward_iterator<const int*> >(); 42 test<input_iterator<const int*>, bidirectional_iterator<const int*> >(); 43 test<input_iterator<const int*>, random_access_iterator<const int*> >(); 44 test<input_iterator<const int*>, const int*>(); 45 46 test<forward_iterator<const int*>, input_iterator<const int*> >(); 47 test<forward_iterator<const int*>, forward_iterator<const int*> >(); 48 test<forward_iterator<const int*>, bidirectional_iterator<const int*> >(); 49 test<forward_iterator<const int*>, random_access_iterator<const int*> >(); 50 test<forward_iterator<const int*>, const int*>(); 51 52 test<bidirectional_iterator<const int*>, input_iterator<const int*> >(); 53 test<bidirectional_iterator<const int*>, forward_iterator<const int*> >(); 54 test<bidirectional_iterator<const int*>, bidirectional_iterator<const int*> >(); 55 test<bidirectional_iterator<const int*>, random_access_iterator<const int*> >(); 56 test<bidirectional_iterator<const int*>, const int*>(); 57 58 test<random_access_iterator<const int*>, input_iterator<const int*> >(); 59 test<random_access_iterator<const int*>, forward_iterator<const int*> >(); 60 test<random_access_iterator<const int*>, bidirectional_iterator<const int*> >(); 61 test<random_access_iterator<const int*>, random_access_iterator<const int*> >(); 62 test<random_access_iterator<const int*>, const int*>(); 63 64 test<const int*, input_iterator<const int*> >(); 65 test<const int*, forward_iterator<const int*> >(); 66 test<const int*, bidirectional_iterator<const int*> >(); 67 test<const int*, random_access_iterator<const int*> >(); 68 test<const int*, const int*>(); 69 } 70
