| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <functional> |
| |
| // UNSUPPORTED: c++98, c++03, c++11 |
| |
| // default searcher |
| // template<class _ForwardIterator, class _BinaryPredicate = equal_to<>> |
| // class default_searcher { |
| // public: |
| // default_searcher(_ForwardIterator __f, _ForwardIterator __l, |
| // _BinaryPredicate __p = _BinaryPredicate()) |
| // : __first_(__f), __last_(__l), __pred_(__p) {} |
| // |
| // template <typename _ForwardIterator2> |
| // _ForwardIterator2 operator () (_ForwardIterator2 __f, _ForwardIterator2 __l) const { |
| // return std::search(__f, __l, __first_, __last_, __pred_); |
| // } |
| // |
| // private: |
| // _ForwardIterator __first_; |
| // _ForwardIterator __last_; |
| // _BinaryPredicate __pred_; |
| // }; |
| |
| |
| #include <experimental/algorithm> |
| #include <experimental/functional> |
| #include <cassert> |
| |
| #include "test_iterators.h" |
| |
| struct count_equal |
| { |
| static unsigned count; |
| template <class T> |
| bool operator()(const T& x, const T& y) const |
| {++count; return x == y;} |
| }; |
| |
| unsigned count_equal::count = 0; |
| |
| template <typename Iter1, typename Iter2> |
| void do_search(Iter1 b1, Iter1 e1, Iter2 b2, Iter2 e2, Iter1 result, unsigned max_count) { |
| std::experimental::default_searcher<Iter2, count_equal> s{b2, e2}; |
| count_equal::count = 0; |
| assert(result == std::experimental::search(b1, e1, s)); |
| assert(count_equal::count <= max_count); |
| } |
| |
| template <class Iter1, class Iter2> |
| void |
| test() |
| { |
| int ia[] = {0, 1, 2, 3, 4, 5}; |
| const unsigned sa = sizeof(ia)/sizeof(ia[0]); |
| do_search(Iter1(ia), Iter1(ia+sa), Iter2(ia), Iter2(ia), Iter1(ia), 0); |
| do_search(Iter1(ia), Iter1(ia+sa), Iter2(ia), Iter2(ia+1), Iter1(ia), sa); |
| do_search(Iter1(ia), Iter1(ia+sa), Iter2(ia+1), Iter2(ia+2), Iter1(ia+1), sa); |
| do_search(Iter1(ia), Iter1(ia+sa), Iter2(ia+2), Iter2(ia+2), Iter1(ia), 0); |
| do_search(Iter1(ia), Iter1(ia+sa), Iter2(ia+2), Iter2(ia+3), Iter1(ia+2), sa); |
| do_search(Iter1(ia), Iter1(ia+sa), Iter2(ia+2), Iter2(ia+3), Iter1(ia+2), sa); |
| do_search(Iter1(ia), Iter1(ia), Iter2(ia+2), Iter2(ia+3), Iter1(ia), 0); |
| do_search(Iter1(ia), Iter1(ia+sa), Iter2(ia+sa-1), Iter2(ia+sa), Iter1(ia+sa-1), sa); |
| do_search(Iter1(ia), Iter1(ia+sa), Iter2(ia+sa-3), Iter2(ia+sa), Iter1(ia+sa-3), 3*sa); |
| do_search(Iter1(ia), Iter1(ia+sa), Iter2(ia), Iter2(ia+sa), Iter1(ia), sa*sa); |
| do_search(Iter1(ia), Iter1(ia+sa-1), Iter2(ia), Iter2(ia+sa), Iter1(ia+sa-1), (sa-1)*sa); |
| do_search(Iter1(ia), Iter1(ia+1), Iter2(ia), Iter2(ia+sa), Iter1(ia+1), sa); |
| int ib[] = {0, 1, 2, 0, 1, 2, 3, 0, 1, 2, 3, 4}; |
| const unsigned sb = sizeof(ib)/sizeof(ib[0]); |
| int ic[] = {1}; |
| do_search(Iter1(ib), Iter1(ib+sb), Iter2(ic), Iter2(ic+1), Iter1(ib+1), sb); |
| int id[] = {1, 2}; |
| do_search(Iter1(ib), Iter1(ib+sb), Iter2(id), Iter2(id+2), Iter1(ib+1), sb*2); |
| int ie[] = {1, 2, 3}; |
| do_search(Iter1(ib), Iter1(ib+sb), Iter2(ie), Iter2(ie+3), Iter1(ib+4), sb*3); |
| int ig[] = {1, 2, 3, 4}; |
| do_search(Iter1(ib), Iter1(ib+sb), Iter2(ig), Iter2(ig+4), Iter1(ib+8), sb*4); |
| int ih[] = {0, 1, 1, 1, 1, 2, 3, 0, 1, 2, 3, 4}; |
| const unsigned sh = sizeof(ih)/sizeof(ih[0]); |
| int ii[] = {1, 1, 2}; |
| do_search(Iter1(ih), Iter1(ih+sh), Iter2(ii), Iter2(ii+3), Iter1(ih+3), sh*3); |
| } |
| |
| int main() { |
| test<forward_iterator<const int*>, forward_iterator<const int*> >(); |
| test<forward_iterator<const int*>, bidirectional_iterator<const int*> >(); |
| test<forward_iterator<const int*>, random_access_iterator<const int*> >(); |
| test<bidirectional_iterator<const int*>, forward_iterator<const int*> >(); |
| test<bidirectional_iterator<const int*>, bidirectional_iterator<const int*> >(); |
| test<bidirectional_iterator<const int*>, random_access_iterator<const int*> >(); |
| test<random_access_iterator<const int*>, forward_iterator<const int*> >(); |
| test<random_access_iterator<const int*>, bidirectional_iterator<const int*> >(); |
| test<random_access_iterator<const int*>, random_access_iterator<const int*> >(); |
| } |
