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
|
#include <boost/core/lightweight_test.hpp>
#include <boost/core/span.hpp>
#include <boost/histogram/detail/nonmember_container_access.hpp>
#include <boost/histogram/detail/reduce_command.hpp>
#include <boost/histogram/detail/sub_array.hpp>
#include <initializer_list>
#include <stdexcept>
#include <utility>
#include "throw_exception.hpp"
namespace boost {
namespace histogram {
namespace detail {
template <class T, std::size_t N>
std::ostream& operator<<(std::ostream& os, const sub_array<T, N>&) {
return os;
}
std::ostream& operator<<(std::ostream& os, const reduce_command&) { return os; }
} // namespace detail
} // namespace histogram
} // namespace boost
using namespace boost::histogram::detail;
int main() {
using boost::span;
{
sub_array<int, 3> a = {1, 2};
BOOST_TEST_EQ(a.size(), 2);
BOOST_TEST_EQ(a.max_size(), 3);
BOOST_TEST_EQ(a.at(0), 1);
BOOST_TEST_EQ(a.at(1), 2);
sub_array<int, 3> b = {1, 2};
BOOST_TEST_EQ(a, b);
sub_array<int, 3> c = {1, 2, 3};
BOOST_TEST_NE(a, c);
sub_array<int, 3> d = {2, 2};
BOOST_TEST_NE(a, d);
auto sp = span<int>(a);
BOOST_TEST_EQ(sp.size(), 2);
BOOST_TEST_EQ(sp.front(), 1);
BOOST_TEST_EQ(sp.back(), 2);
const auto& ca = a;
auto csp = span<const int>(ca);
BOOST_TEST_EQ(csp.size(), 2);
BOOST_TEST_EQ(csp.front(), 1);
BOOST_TEST_EQ(csp.back(), 2);
}
{
sub_array<int, 2> a(2, 1);
sub_array<int, 2> b(1, 2);
std::swap(a, b);
BOOST_TEST_EQ(a.size(), 1);
BOOST_TEST_EQ(b.size(), 2);
BOOST_TEST_EQ(a[0], 2);
BOOST_TEST_EQ(b[0], 1);
BOOST_TEST_EQ(b[1], 1);
}
{
const std::initializer_list<int> a = {1, 2};
auto sp = span<const int>(a);
BOOST_TEST_EQ(sp.size(), 2);
}
{
const sub_array<reduce_command, 3> a(2);
auto sp = span<const reduce_command>(a);
BOOST_TEST_EQ(sp.size(), 2);
}
{
const std::initializer_list<reduce_command> a = {reduce_command{}};
auto sp = span<const reduce_command>(a);
BOOST_TEST_EQ(sp.size(), 1);
}
return boost::report_errors();
}
|
