1 | // Boost.Range library |
2 | // |
3 | // Copyright Neil Groves 2010. Use, modification and |
4 | // distribution is subject to the Boost Software License, Version |
5 | // 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
6 | // http://www.boost.org/LICENSE_1_0.txt) |
7 | // |
8 | // |
9 | // For more information, see http://www.boost.org/libs/range/ |
10 | // |
11 | #include <boost/range/algorithm_ext/push_front.hpp> |
12 | |
13 | #include <boost/test/test_tools.hpp> |
14 | #include <boost/test/unit_test.hpp> |
15 | |
16 | #include <boost/range/iterator.hpp> |
17 | #include <boost/range/irange.hpp> |
18 | #include <algorithm> |
19 | #include <list> |
20 | #include <vector> |
21 | |
22 | namespace |
23 | { |
24 | struct DoubleValue |
25 | { |
26 | template< class Value > |
27 | Value operator()(Value x) |
28 | { |
29 | return x * 2; |
30 | } |
31 | }; |
32 | |
33 | template< class Container > |
34 | void test_push_front_impl(std::size_t n) |
35 | { |
36 | Container reference; |
37 | for (std::size_t i = 0; i < n; ++i) |
38 | reference.push_back(i); |
39 | |
40 | Container test; |
41 | boost::push_front(test, boost::irange<std::size_t>(first: 0, last: n)); |
42 | |
43 | BOOST_CHECK_EQUAL_COLLECTIONS( reference.begin(), reference.end(), |
44 | test.begin(), test.end() ); |
45 | |
46 | // copy the original reference sequence |
47 | Container reference_copy(reference); |
48 | std::transform(reference.begin(), reference.end(), reference.begin(), DoubleValue()); |
49 | |
50 | // Do it again to push onto non-empty container |
51 | reference.insert(reference.end(), reference_copy.begin(), reference_copy.end()); |
52 | |
53 | boost::push_front(test, boost::irange<std::size_t>(first: 0, last: n * 2, step_size: 2)); |
54 | |
55 | BOOST_CHECK_EQUAL_COLLECTIONS( reference.begin(), reference.end(), |
56 | test.begin(), test.end() ); |
57 | } |
58 | |
59 | template< class Container > |
60 | void test_push_front_impl() |
61 | { |
62 | test_push_front_impl< Container >(0); |
63 | test_push_front_impl< Container >(1); |
64 | test_push_front_impl< Container >(2); |
65 | test_push_front_impl< Container >(100); |
66 | } |
67 | |
68 | void test_push_front() |
69 | { |
70 | test_push_front_impl< std::vector<std::size_t> >(); |
71 | test_push_front_impl< std::list<std::size_t> >(); |
72 | } |
73 | } |
74 | |
75 | boost::unit_test::test_suite* |
76 | init_unit_test_suite(int argc, char* argv[]) |
77 | { |
78 | boost::unit_test::test_suite* test |
79 | = BOOST_TEST_SUITE( "RangeTestSuite.algorithm_ext.push_front" ); |
80 | |
81 | test->add( BOOST_TEST_CASE( &test_push_front ) ); |
82 | |
83 | return test; |
84 | } |
85 | |