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
|
// Copyright (c) 2018-2025 Jean-Louis Leroy
// 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)
#include <iostream>
#include <stdexcept>
#include <string>
#include <type_traits>
#include <any>
#include <boost/openmethod.hpp>
#include <boost/openmethod/interop/std_shared_ptr.hpp>
#include <boost/openmethod/interop/std_unique_ptr.hpp>
#include <boost/openmethod/initialize.hpp>
#include <boost/openmethod/policies/vptr_vector.hpp>
#include "test_util.hpp"
#define BOOST_TEST_MODULE openmethod
#include <boost/test/unit_test.hpp>
using namespace boost::openmethod;
namespace TEST_NS {
using namespace test_matrices;
struct test_registry : test_registry_<__COUNTER__> {};
BOOST_OPENMETHOD_CLASSES(matrix, dense_matrix, test_registry);
BOOST_OPENMETHOD(
times, (virtual_<const matrix&>, virtual_<const matrix&>),
std::unique_ptr<matrix>, test_registry);
BOOST_OPENMETHOD_OVERRIDE(
times, (const dense_matrix&, const matrix&),
std::unique_ptr<dense_matrix>) {
return std::make_unique<dense_matrix>();
}
BOOST_OPENMETHOD_OVERRIDE(
times, (const matrix&, const dense_matrix&), std::unique_ptr<matrix>) {
return std::make_unique<matrix>();
}
static_assert(
std::is_same_v<
detail::virtual_type<std::unique_ptr<matrix>, test_registry>, matrix>);
BOOST_AUTO_TEST_CASE(covariant_return_type) {
auto compiler = boost::openmethod::initialize<test_registry>(n2216());
BOOST_TEST(compiler.report.ambiguous == 0u);
// test_registry: use covariant return types to resolve ambiguity.
dense_matrix left, right;
auto result = times(left, right);
BOOST_TEST(result->type == DENSE_MATRIX);
}
} // namespace TEST_NS
namespace TEST_NS {
using namespace test_matrices;
struct test_registry : test_registry_<__COUNTER__> {};
BOOST_OPENMETHOD_CLASSES(matrix, dense_matrix, test_registry);
BOOST_OPENMETHOD(
times, (virtual_<const matrix&>, virtual_<const matrix&>), string_pair,
test_registry);
BOOST_OPENMETHOD_OVERRIDE(times, (const matrix&, const matrix&), string_pair) {
return string_pair(MATRIX_MATRIX, NONE);
}
BOOST_OPENMETHOD_OVERRIDE(
times, (const dense_matrix&, const matrix&), string_pair) {
return string_pair(DENSE_MATRIX, MATRIX_MATRIX);
}
BOOST_OPENMETHOD_OVERRIDE(
times, (const matrix&, const dense_matrix&), string_pair) {
return string_pair(MATRIX_DENSE, MATRIX_MATRIX);
}
BOOST_AUTO_TEST_CASE(pick_any_ambiguous) {
auto compiler = boost::openmethod::initialize<test_registry>(n2216());
BOOST_TEST(compiler.report.ambiguous == 1u);
// test_registry: use covariant return types to resolve ambiguity.
dense_matrix left, right;
auto result = times(left, right);
BOOST_TEST(result.first == MATRIX_DENSE);
BOOST_TEST(result.second == MATRIX_MATRIX);
}
} // namespace TEST_NS
|
