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, OutputIterator<auto, InIter::reference> OutIter> 13 // OutIter 14 // copy_n(InIter first, InIter::difference_type n, OutIter result); 15 16 #include <algorithm> 17 #include <cassert> 18 19 #include "test_iterators.h" 20 #include "user_defined_integral.hpp" 21 22 typedef UserDefinedIntegral<unsigned> UDI; 23 24 template <class InIter, class OutIter> 25 void 26 test() 27 { 28 const unsigned N = 1000; 29 int ia[N]; 30 for (unsigned i = 0; i < N; ++i) 31 ia[i] = i; 32 int ib[N] = {0}; 33 34 OutIter r = std::copy_n(InIter(ia), UDI(N/2), OutIter(ib)); 35 assert(base(r) == ib+N/2); 36 for (unsigned i = 0; i < N/2; ++i) 37 assert(ia[i] == ib[i]); 38 } 39 40 int main() 41 { 42 test<input_iterator<const int*>, output_iterator<int*> >(); 43 test<input_iterator<const int*>, input_iterator<int*> >(); 44 test<input_iterator<const int*>, forward_iterator<int*> >(); 45 test<input_iterator<const int*>, bidirectional_iterator<int*> >(); 46 test<input_iterator<const int*>, random_access_iterator<int*> >(); 47 test<input_iterator<const int*>, int*>(); 48 49 test<forward_iterator<const int*>, output_iterator<int*> >(); 50 test<forward_iterator<const int*>, input_iterator<int*> >(); 51 test<forward_iterator<const int*>, forward_iterator<int*> >(); 52 test<forward_iterator<const int*>, bidirectional_iterator<int*> >(); 53 test<forward_iterator<const int*>, random_access_iterator<int*> >(); 54 test<forward_iterator<const int*>, int*>(); 55 56 test<bidirectional_iterator<const int*>, output_iterator<int*> >(); 57 test<bidirectional_iterator<const int*>, input_iterator<int*> >(); 58 test<bidirectional_iterator<const int*>, forward_iterator<int*> >(); 59 test<bidirectional_iterator<const int*>, bidirectional_iterator<int*> >(); 60 test<bidirectional_iterator<const int*>, random_access_iterator<int*> >(); 61 test<bidirectional_iterator<const int*>, int*>(); 62 63 test<random_access_iterator<const int*>, output_iterator<int*> >(); 64 test<random_access_iterator<const int*>, input_iterator<int*> >(); 65 test<random_access_iterator<const int*>, forward_iterator<int*> >(); 66 test<random_access_iterator<const int*>, bidirectional_iterator<int*> >(); 67 test<random_access_iterator<const int*>, random_access_iterator<int*> >(); 68 test<random_access_iterator<const int*>, int*>(); 69 70 test<const int*, output_iterator<int*> >(); 71 test<const int*, input_iterator<int*> >(); 72 test<const int*, forward_iterator<int*> >(); 73 test<const int*, bidirectional_iterator<int*> >(); 74 test<const int*, random_access_iterator<int*> >(); 75 test<const int*, int*>(); 76 } 77
