123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188 |
- /*
- Copyright (c) Marshall Clow 2013.
- Distributed under the Boost Software License, Version 1.0. (See accompanying
- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- For more information, see http://www.boost.org
- */
- #include <boost/config.hpp>
- #include <boost/algorithm/cxx17/transform_reduce.hpp>
- #include "iterator_test.hpp"
- #define BOOST_TEST_MAIN
- #include <boost/test/unit_test.hpp>
- namespace ba = boost::algorithm;
- template <class _Tp>
- struct identity
- {
- const _Tp& operator()(const _Tp& __x) const { return __x;}
- };
- template <class _Tp>
- struct twice
- {
- const _Tp operator()(const _Tp& __x) const { return 2 * __x; }
- };
- template <class Iter1, class T, class BOp, class UOp>
- void
- test_init_bop_uop(Iter1 first1, Iter1 last1, T init, BOp bOp, UOp uOp, T x)
- {
- BOOST_CHECK(ba::transform_reduce(first1, last1, init, bOp, uOp) == x);
- }
- template <class Iter>
- void
- test_init_bop_uop()
- {
- int ia[] = {1, 2, 3, 4, 5, 6};
- unsigned sa = sizeof(ia) / sizeof(ia[0]);
- test_init_bop_uop(Iter(ia), Iter(ia), 0, std::plus<int>(), identity<int>(), 0);
- test_init_bop_uop(Iter(ia), Iter(ia), 1, std::multiplies<int>(), identity<int>(), 1);
- test_init_bop_uop(Iter(ia), Iter(ia+1), 0, std::multiplies<int>(), identity<int>(), 0);
- test_init_bop_uop(Iter(ia), Iter(ia+1), 2, std::plus<int>(), identity<int>(), 3);
- test_init_bop_uop(Iter(ia), Iter(ia+2), 0, std::plus<int>(), identity<int>(), 3);
- test_init_bop_uop(Iter(ia), Iter(ia+2), 3, std::multiplies<int>(), identity<int>(), 6);
- test_init_bop_uop(Iter(ia), Iter(ia+sa), 4, std::multiplies<int>(), identity<int>(), 2880);
- test_init_bop_uop(Iter(ia), Iter(ia+sa), 4, std::plus<int>(), identity<int>(), 25);
- test_init_bop_uop(Iter(ia), Iter(ia), 0, std::plus<int>(), twice<int>(), 0);
- test_init_bop_uop(Iter(ia), Iter(ia), 1, std::multiplies<int>(), twice<int>(), 1);
- test_init_bop_uop(Iter(ia), Iter(ia+1), 0, std::multiplies<int>(), twice<int>(), 0);
- test_init_bop_uop(Iter(ia), Iter(ia+1), 2, std::plus<int>(), twice<int>(), 4);
- test_init_bop_uop(Iter(ia), Iter(ia+2), 0, std::plus<int>(), twice<int>(), 6);
- test_init_bop_uop(Iter(ia), Iter(ia+2), 3, std::multiplies<int>(), twice<int>(), 24);
- test_init_bop_uop(Iter(ia), Iter(ia+sa), 4, std::multiplies<int>(), twice<int>(), 184320); // 64 * 2880
- test_init_bop_uop(Iter(ia), Iter(ia+sa), 4, std::plus<int>(), twice<int>(), 46);
- }
- void test_transform_reduce_init_bop_uop()
- {
- BOOST_CHECK ( true );
- }
- template <class Iter1, class Iter2, class T, class Op1, class Op2>
- void
- test_init_bop_bop(Iter1 first1, Iter1 last1, Iter2 first2, T init, Op1 op1, Op2 op2, T x)
- {
- BOOST_CHECK(ba::transform_reduce(first1, last1, first2, init, op1, op2) == x);
- }
- template <class SIter, class UIter>
- void
- test_init_bop_bop()
- {
- int ia[] = {1, 2, 3, 4, 5, 6};
- unsigned int ua[] = {2, 4, 6, 8, 10,12};
- unsigned sa = sizeof(ia) / sizeof(ia[0]);
- BOOST_CHECK(sa == sizeof(ua) / sizeof(ua[0])); // just to be sure
- test_init_bop_bop(SIter(ia), SIter(ia), UIter(ua), 0, std::plus<int>(), std::multiplies<int>(), 0);
- test_init_bop_bop(UIter(ua), UIter(ua), SIter(ia), 1, std::multiplies<int>(), std::plus<int>(), 1);
- test_init_bop_bop(SIter(ia), SIter(ia+1), UIter(ua), 0, std::multiplies<int>(), std::plus<int>(), 0);
- test_init_bop_bop(UIter(ua), UIter(ua+1), SIter(ia), 2, std::plus<int>(), std::multiplies<int>(), 4);
- test_init_bop_bop(SIter(ia), SIter(ia+2), UIter(ua), 0, std::plus<int>(), std::multiplies<int>(), 10);
- test_init_bop_bop(UIter(ua), UIter(ua+2), SIter(ia), 3, std::multiplies<int>(), std::plus<int>(), 54);
- test_init_bop_bop(SIter(ia), SIter(ia+sa), UIter(ua), 4, std::multiplies<int>(), std::plus<int>(), 2099520);
- test_init_bop_bop(UIter(ua), UIter(ua+sa), SIter(ia), 4, std::plus<int>(), std::multiplies<int>(), 186);
- }
- void test_transform_reduce_init_bop_bop()
- {
- // All the iterator categories
- test_init_bop_bop<input_iterator <const int*>, input_iterator <const unsigned int*> >();
- test_init_bop_bop<input_iterator <const int*>, forward_iterator <const unsigned int*> >();
- test_init_bop_bop<input_iterator <const int*>, bidirectional_iterator<const unsigned int*> >();
- test_init_bop_bop<input_iterator <const int*>, random_access_iterator<const unsigned int*> >();
- test_init_bop_bop<forward_iterator <const int*>, input_iterator <const unsigned int*> >();
- test_init_bop_bop<forward_iterator <const int*>, forward_iterator <const unsigned int*> >();
- test_init_bop_bop<forward_iterator <const int*>, bidirectional_iterator<const unsigned int*> >();
- test_init_bop_bop<forward_iterator <const int*>, random_access_iterator<const unsigned int*> >();
- test_init_bop_bop<bidirectional_iterator<const int*>, input_iterator <const unsigned int*> >();
- test_init_bop_bop<bidirectional_iterator<const int*>, forward_iterator <const unsigned int*> >();
- test_init_bop_bop<bidirectional_iterator<const int*>, bidirectional_iterator<const unsigned int*> >();
- test_init_bop_bop<bidirectional_iterator<const int*>, random_access_iterator<const unsigned int*> >();
- test_init_bop_bop<random_access_iterator<const int*>, input_iterator <const unsigned int*> >();
- test_init_bop_bop<random_access_iterator<const int*>, forward_iterator <const unsigned int*> >();
- test_init_bop_bop<random_access_iterator<const int*>, bidirectional_iterator<const unsigned int*> >();
- test_init_bop_bop<random_access_iterator<const int*>, random_access_iterator<const unsigned int*> >();
- // just plain pointers (const vs. non-const, too)
- test_init_bop_bop<const int*, const unsigned int *>();
- test_init_bop_bop<const int*, unsigned int *>();
- test_init_bop_bop< int*, const unsigned int *>();
- test_init_bop_bop< int*, unsigned int *>();
- }
- template <class Iter1, class Iter2, class T>
- void
- test_init(Iter1 first1, Iter1 last1, Iter2 first2, T init, T x)
- {
- BOOST_CHECK(ba::transform_reduce(first1, last1, first2, init) == x);
- }
- template <class SIter, class UIter>
- void
- test_init()
- {
- int ia[] = {1, 2, 3, 4, 5, 6};
- unsigned int ua[] = {2, 4, 6, 8, 10,12};
- unsigned sa = sizeof(ia) / sizeof(ia[0]);
- BOOST_CHECK(sa == sizeof(ua) / sizeof(ua[0])); // just to be sure
- test_init(SIter(ia), SIter(ia), UIter(ua), 0, 0);
- test_init(UIter(ua), UIter(ua), SIter(ia), 1, 1);
- test_init(SIter(ia), SIter(ia+1), UIter(ua), 0, 2);
- test_init(UIter(ua), UIter(ua+1), SIter(ia), 2, 4);
- test_init(SIter(ia), SIter(ia+2), UIter(ua), 0, 10);
- test_init(UIter(ua), UIter(ua+2), SIter(ia), 3, 13);
- test_init(SIter(ia), SIter(ia+sa), UIter(ua), 0, 182);
- test_init(UIter(ua), UIter(ua+sa), SIter(ia), 4, 186);
- }
- void test_transform_reduce_init()
- {
- // All the iterator categories
- test_init<input_iterator <const int*>, input_iterator <const unsigned int*> >();
- test_init<input_iterator <const int*>, forward_iterator <const unsigned int*> >();
- test_init<input_iterator <const int*>, bidirectional_iterator<const unsigned int*> >();
- test_init<input_iterator <const int*>, random_access_iterator<const unsigned int*> >();
- test_init<forward_iterator <const int*>, input_iterator <const unsigned int*> >();
- test_init<forward_iterator <const int*>, forward_iterator <const unsigned int*> >();
- test_init<forward_iterator <const int*>, bidirectional_iterator<const unsigned int*> >();
- test_init<forward_iterator <const int*>, random_access_iterator<const unsigned int*> >();
- test_init<bidirectional_iterator<const int*>, input_iterator <const unsigned int*> >();
- test_init<bidirectional_iterator<const int*>, forward_iterator <const unsigned int*> >();
- test_init<bidirectional_iterator<const int*>, bidirectional_iterator<const unsigned int*> >();
- test_init<bidirectional_iterator<const int*>, random_access_iterator<const unsigned int*> >();
- test_init<random_access_iterator<const int*>, input_iterator <const unsigned int*> >();
- test_init<random_access_iterator<const int*>, forward_iterator <const unsigned int*> >();
- test_init<random_access_iterator<const int*>, bidirectional_iterator<const unsigned int*> >();
- test_init<random_access_iterator<const int*>, random_access_iterator<const unsigned int*> >();
- // just plain pointers (const vs. non-const, too)
- test_init<const int*, const unsigned int *>();
- test_init<const int*, unsigned int *>();
- test_init< int*, const unsigned int *>();
- test_init< int*, unsigned int *>();
- }
- BOOST_AUTO_TEST_CASE( test_main )
- {
- test_transform_reduce_init();
- test_transform_reduce_init_bop_uop();
- test_transform_reduce_init_bop_bop();
- }
|