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
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
// SPDX-FileCopyrightText: 2006-2025 Knut Reinert & Freie Universität Berlin
// SPDX-FileCopyrightText: 2016-2025 Knut Reinert & MPI für molekulare Genetik
// SPDX-License-Identifier: BSD-3-Clause
#include <gtest/gtest.h>
#include <deque>
#include <forward_list>
#include <list>
#include <ranges>
#include <vector>
#include <seqan3/utility/range/to.hpp>
/* These test cases are taken from the proposal https://wg21.link/p1206r7.
* This demonstrates the subset of syntaxes constructs that compile.
*/
TEST(to_test, overview)
{
auto l = std::views::iota(1, 10);
// create a vector with the elements of l
auto vec = seqan3::ranges::to<std::vector<int>>(l);
// Specify an allocator
auto b = seqan3::ranges::to<std::vector<int, std::allocator<int>>>(l, std::allocator<int>{});
// deducing value_type
auto c = seqan3::ranges::to<std::vector>(l);
// explicit conversion int -> long
auto d = seqan3::ranges::to<std::vector<long>>(l);
// Supports converting associative container to sequence containers
//auto f = seqan3::ranges::to<std::vector>(m); // Not supported by seqan3
// Supports converting sequence containers to associative ones
//auto g = seqan3::ranges::to<std::map>(f); // Not supported by seqan3
// Pipe syntaxe
auto g = l | std::ranges::views::take(42) | seqan3::ranges::to<std::vector>();
// Pipe syntax with allocator
auto h = l | std::ranges::views::take(42) | seqan3::ranges::to<std::vector>(std::allocator<int>{});
// The pipe syntax also support specifying the type and conversions
auto i = l | std::ranges::views::take(42) | seqan3::ranges::to<std::vector<long>>();
// Nested ranges
std::list<std::forward_list<int>> lst = {{0, 1, 2, 3}, {4, 5, 6, 7}};
auto vec1 = seqan3::ranges::to<std::vector<std::vector<int>>>(lst);
auto vec2 = seqan3::ranges::to<std::vector<std::deque<double>>>(lst);
}
// Check that converting a range to `std::vector<int>` works with the function call syntax.
TEST(to_test, function_call_explicit_vector)
{
auto lst = std::views::iota(1, 10);
auto vec = seqan3::ranges::to<std::vector<int>>(lst);
auto expected = std::vector<int>{1, 2, 3, 4, 5, 6, 7, 8, 9};
EXPECT_EQ(vec, expected);
}
/* Check that converting a range to `std::vector<int, UserDefinedAllocator>` works with the function call
* syntax and an user-defined allocator.
*/
TEST(to_test, function_call_explicit_vector_with_allocator)
{
auto lst = std::views::iota(1, 10);
auto vec = seqan3::ranges::to<std::vector<int, std::allocator<int>>>(lst, std::allocator<int>{});
auto expected = std::vector<int>{1, 2, 3, 4, 5, 6, 7, 8, 9};
EXPECT_EQ(vec, expected);
}
// Check that converting a range to `std::vector` works with the function call syntax.
TEST(to_test, function_call_implicit_vector)
{
auto lst = std::views::iota(1, 10);
auto vec = seqan3::ranges::to<std::vector>(lst);
auto expected = std::vector<int>{1, 2, 3, 4, 5, 6, 7, 8, 9};
EXPECT_EQ(vec, expected);
}
// Check that converting a range to `std::vector` works with the function call syntax and an user-defined allocator.
TEST(to_test, function_call_implicit_vector_with_allocator)
{
auto lst = std::views::iota(1, 10);
auto vec = seqan3::ranges::to<std::vector>(lst, std::allocator<int>{});
auto expected = std::vector<int>{1, 2, 3, 4, 5, 6, 7, 8, 9};
EXPECT_EQ(vec, expected);
}
// Check that converting a range to `std::vector<int>` works with the function call syntax.
TEST(to_test, function_call_explicit_vector_with_conversion)
{
auto lst = std::views::iota(1, 10);
auto vec = seqan3::ranges::to<std::vector<double>>(lst);
auto expected = std::vector<double>{1, 2, 3, 4, 5, 6, 7, 8, 9};
EXPECT_EQ(vec, expected);
}
// Check that converting a range to `std::vector<int>` works using pipe syntax.
TEST(to_test, pipe_syntax_explicit_vector)
{
auto lst = std::views::iota(1, 10);
auto vec = lst | seqan3::ranges::to<std::vector<int>>();
auto expected = std::vector<int>{1, 2, 3, 4, 5, 6, 7, 8, 9};
EXPECT_EQ(vec, expected);
}
/* Check that converting a range to `std::vector<int, UserDefinedAllocator>` works with pipe
* syntax and an user-defined allocator.
*/
TEST(to_test, pipe_syntax_explicit_vector_with_allocator)
{
auto lst = std::views::iota(1, 10);
auto vec = lst | seqan3::ranges::to<std::vector<int, std::allocator<int>>>(std::allocator<int>{});
auto expected = std::vector<int>{1, 2, 3, 4, 5, 6, 7, 8, 9};
EXPECT_EQ(vec, expected);
}
// Check that converting a range to `std::vector` works using pipe syntax.
TEST(to_test, pipe_syntax_implicit_vector)
{
auto lst = std::views::iota(1, 10);
auto vec = lst | seqan3::ranges::to<std::vector>();
auto expected = std::vector<int>{1, 2, 3, 4, 5, 6, 7, 8, 9};
EXPECT_EQ(vec, expected);
}
// Check that converting a range to `std::vector` works with pipe syntax and an user-defined allocator.
TEST(to_test, pipe_syntax_implicit_vector_with_allocator)
{
auto lst = std::views::iota(1, 10);
auto vec = lst | seqan3::ranges::to<std::vector>(std::allocator<int>{});
auto expected = std::vector<int>{1, 2, 3, 4, 5, 6, 7, 8, 9};
EXPECT_EQ(vec, expected);
}
// Check that converting a range to `std::vector<int>` works using pipe syntax.
TEST(to_test, pipe_syntax_explicit_vector_with_conversion)
{
auto lst = std::views::iota(1, 10);
auto vec = lst | seqan3::ranges::to<std::vector<double>>();
auto expected = std::vector<double>{1, 2, 3, 4, 5, 6, 7, 8, 9};
EXPECT_EQ(vec, expected);
}
// Check that converting nested ranges can be converted to nested containers using function call syntax.
TEST(to_test, syntax_explicit_vector)
{
auto lst = std::list<std::forward_list<int>>{{1, 2, 3}, {4, 5, 6, 7}};
auto vec = seqan3::ranges::to<std::vector<std::vector<int>>>(lst);
auto expected = std::vector<std::vector<int>>{{1, 2, 3}, {4, 5, 6, 7}};
EXPECT_EQ(vec, expected);
}
// Check other converting types.
TEST(to_test, various_types)
{
auto lst = std::views::iota(1, 10);
EXPECT_EQ(lst | seqan3::ranges::to<std::vector<int>>(), (std::vector<int>{1, 2, 3, 4, 5, 6, 7, 8, 9}));
EXPECT_EQ(lst | seqan3::ranges::to<std::list<int>>(), (std::list<int>{1, 2, 3, 4, 5, 6, 7, 8, 9}));
EXPECT_EQ(lst | seqan3::ranges::to<std::deque<int>>(), (std::deque<int>{1, 2, 3, 4, 5, 6, 7, 8, 9}));
}
|
