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
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
///////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2015 Microsoft Corporation. All rights reserved.
//
// This code is licensed under the MIT License (MIT).
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
///////////////////////////////////////////////////////////////////////////////
#ifdef _MSC_VER
// blanket turn off warnings from CppCoreCheck from catch
// so people aren't annoyed by them when running the tool.
#pragma warning(disable : 26440 26426) // from catch
#endif
#include <catch/catch.hpp> // for AssertionHandler, StringRef, CHECK, CHE...
#include <gsl/gsl_algorithm> // for copy
#include <gsl/span> // for span
#include <array> // for array
#include <cstddef> // for size_t
namespace gsl {
struct fail_fast;
} // namespace gsl
using namespace std;
using namespace gsl;
GSL_SUPPRESS(bounds.4) // NO-FORMAT: attribute
GSL_SUPPRESS(bounds.2) // NO-FORMAT: attribute
TEST_CASE("same_type")
{
// dynamic source and destination span
{
std::array<int, 5> src{1, 2, 3, 4, 5};
std::array<int, 10> dst{};
const span<int> src_span(src);
const span<int> dst_span(dst);
copy(src_span, dst_span);
copy(src_span, dst_span.subspan(src_span.size()));
for (std::size_t i = 0; i < src.size(); ++i) {
CHECK(dst[i] == src[i]);
CHECK(dst[i + src.size()] == src[i]);
}
}
// static source and dynamic destination span
{
std::array<int, 5> src{1, 2, 3, 4, 5};
std::array<int, 10> dst{};
const span<int, 5> src_span(src);
const span<int> dst_span(dst);
copy(src_span, dst_span);
copy(src_span, dst_span.subspan(src_span.size()));
for (std::size_t i = 0; i < src.size(); ++i) {
CHECK(dst[i] == src[i]);
CHECK(dst[i + src.size()] == src[i]);
}
}
// dynamic source and static destination span
{
std::array<int, 5> src{1, 2, 3, 4, 5};
std::array<int, 10> dst{};
const span<int> src_span(src);
const span<int, 10> dst_span(dst);
copy(src_span, dst_span);
copy(src_span, dst_span.subspan(src_span.size()));
for (std::size_t i = 0; i < src.size(); ++i) {
CHECK(dst[i] == src[i]);
CHECK(dst[i + src.size()] == src[i]);
}
}
// static source and destination span
{
std::array<int, 5> src{1, 2, 3, 4, 5};
std::array<int, 10> dst{};
const span<int, 5> src_span(src);
const span<int, 10> dst_span(dst);
copy(src_span, dst_span);
copy(src_span, dst_span.subspan(src_span.size()));
for (std::size_t i = 0; i < src.size(); ++i) {
CHECK(dst[i] == src[i]);
CHECK(dst[i + src.size()] == src[i]);
}
}
}
GSL_SUPPRESS(bounds.4) // NO-FORMAT: attribute
GSL_SUPPRESS(bounds.2) // NO-FORMAT: attribute
TEST_CASE("compatible_type")
{
// dynamic source and destination span
{
std::array<short, 5> src{1, 2, 3, 4, 5};
std::array<int, 10> dst{};
const span<short> src_span(src);
const span<int> dst_span(dst);
copy(src_span, dst_span);
copy(src_span, dst_span.subspan(src_span.size()));
for (std::size_t i = 0; i < src.size(); ++i) {
CHECK(dst[i] == src[i]);
CHECK(dst[i + src.size()] == src[i]);
}
}
// static source and dynamic destination span
{
std::array<short, 5> src{1, 2, 3, 4, 5};
std::array<int, 10> dst{};
const span<short, 5> src_span(src);
const span<int> dst_span(dst);
copy(src_span, dst_span);
copy(src_span, dst_span.subspan(src_span.size()));
for (std::size_t i = 0; i < src.size(); ++i) {
CHECK(dst[i] == src[i]);
CHECK(dst[i + src.size()] == src[i]);
}
}
// dynamic source and static destination span
{
std::array<short, 5> src{1, 2, 3, 4, 5};
std::array<int, 10> dst{};
const span<short> src_span(src);
const span<int, 10> dst_span(dst);
copy(src_span, dst_span);
copy(src_span, dst_span.subspan(src_span.size()));
for (std::size_t i = 0; i < src.size(); ++i) {
CHECK(dst[i] == src[i]);
CHECK(dst[i + src.size()] == src[i]);
}
}
// static source and destination span
{
std::array<short, 5> src{1, 2, 3, 4, 5};
std::array<int, 10> dst{};
const span<short, 5> src_span(src);
const span<int, 10> dst_span(dst);
copy(src_span, dst_span);
copy(src_span, dst_span.subspan(src_span.size()));
for (std::size_t i = 0; i < src.size(); ++i) {
CHECK(dst[i] == src[i]);
CHECK(dst[i + src.size()] == src[i]);
}
}
}
#ifdef CONFIRM_COMPILATION_ERRORS
TEST_CASE("incompatible_type")
{
std::array<int, 4> src{1, 2, 3, 4};
std::array<int*, 12> dst{};
span<int> src_span_dyn(src);
span<int, 4> src_span_static(src);
span<int*> dst_span_dyn(dst);
span<int*, 4> dst_span_static(dst);
// every line should produce a compilation error
copy(src_span_dyn, dst_span_dyn);
copy(src_span_dyn, dst_span_static);
copy(src_span_static, dst_span_dyn);
copy(src_span_static, dst_span_static);
}
#endif
TEST_CASE("small_destination_span")
{
std::array<int, 12> src{1, 2, 3, 4};
std::array<int, 4> dst{};
const span<int> src_span_dyn(src);
const span<int, 12> src_span_static(src);
const span<int> dst_span_dyn(dst);
const span<int, 4> dst_span_static(dst);
CHECK_THROWS_AS(copy(src_span_dyn, dst_span_dyn), fail_fast);
CHECK_THROWS_AS(copy(src_span_dyn, dst_span_static), fail_fast);
CHECK_THROWS_AS(copy(src_span_static, dst_span_dyn), fail_fast);
#ifdef CONFIRM_COMPILATION_ERRORS
copy(src_span_static, dst_span_static);
#endif
}
|
