1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
/*
Copyright (c) Marshall Clow 2011-2012.
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 <iostream>
#include <boost/config.hpp>
#include <boost/algorithm/cxx11/partition_copy.hpp>
#define BOOST_TEST_MAIN
#include <boost/test/unit_test.hpp>
#include <boost/algorithm/cxx11/all_of.hpp>
#include <boost/algorithm/cxx11/none_of.hpp>
#include <string>
#include <vector>
#include <list>
namespace ba = boost::algorithm;
// namespace ba = boost;
template <typename Container, typename Predicate>
void test_sequence ( const Container &c, Predicate comp ) {
std::vector<typename Container::value_type> v1, v2;
v1.clear (); v2.clear ();
ba::partition_copy ( c.begin (), c.end (),
std::back_inserter (v1), std::back_inserter (v2), comp );
// std::cout << "Sizes(1): " << c.size () << " -> { " << v1.size () << ", " << v2.size () << " }" << std::endl;
BOOST_CHECK ( v1.size () + v2.size () == c.size ());
BOOST_CHECK ( ba::all_of ( v1.begin (), v1.end (), comp ));
BOOST_CHECK ( ba::none_of ( v2.begin (), v2.end (), comp ));
v1.clear (); v2.clear ();
ba::partition_copy ( c, std::back_inserter (v1), std::back_inserter ( v2 ), comp );
// std::cout << "Sizes(2): " << c.size () << " -> { " << v1.size () << ", " << v2.size () << " }" << std::endl;
BOOST_CHECK ( v1.size () + v2.size () == c.size ());
BOOST_CHECK ( ba::all_of ( v1, comp ));
BOOST_CHECK ( ba::none_of ( v2, comp ));
}
template <typename T>
struct less_than {
public:
BOOST_CXX14_CONSTEXPR less_than ( T foo ) : val ( foo ) {}
BOOST_CXX14_CONSTEXPR less_than ( const less_than &rhs ) : val ( rhs.val ) {}
BOOST_CXX14_CONSTEXPR bool operator () ( const T &v ) const { return v < val; }
private:
less_than ();
less_than operator = ( const less_than &rhs );
T val;
};
bool is_even ( int v ) { return v % 2 == 0; }
void test_sequence1 () {
std::vector<int> v;
v.clear ();
for ( int i = 5; i < 15; ++i )
v.push_back ( i );
test_sequence ( v, less_than<int>(3)); // no elements
test_sequence ( v, less_than<int>(6)); // only the first element
test_sequence ( v, less_than<int>(10));
test_sequence ( v, less_than<int>(99)); // all elements satisfy
// With bidirectional iterators.
std::list<int> l;
for ( int i = 5; i < 16; ++i )
l.push_back ( i );
test_sequence ( l, less_than<int>(3)); // no elements
test_sequence ( l, less_than<int>(6)); // only the first element
test_sequence ( l, less_than<int>(10));
test_sequence ( l, less_than<int>(99)); // all elements satisfy
}
BOOST_CXX14_CONSTEXPR bool test_constexpr () {
int in[] = {1, 1, 2};
int out_true[3] = {0};
int out_false[3] = {0};
bool res = true;
ba::partition_copy( in, in + 3, out_true, out_false, less_than<int>(2) );
res = (res && ba::all_of(out_true, out_true + 2, less_than<int>(2)) );
res = (res && ba::none_of(out_false, out_false + 1, less_than<int>(2)) );
// clear elements
out_true [0] = 0;
out_true [1] = 0;
out_false[0] = 0;
ba::partition_copy( in, out_true, out_false, less_than<int>(2));
res = ( res && ba::all_of(out_true, out_true + 2, less_than<int>(2)));
res = ( res && ba::none_of(out_false, out_false + 1, less_than<int>(2)));
return res;
}
BOOST_AUTO_TEST_CASE( test_main )
{
test_sequence1 ();
BOOST_CXX14_CONSTEXPR bool constexpr_res = test_constexpr ();
BOOST_CHECK ( constexpr_res );
}
|
