blob: 75c4db6c3661e9a097282622f6a493c59d470f4e (
plain)
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
|
// Copyright 2018 The Abseil Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "absl/container/internal/hash_generator_testing.h"
#include <deque>
namespace absl {
ABSL_NAMESPACE_BEGIN
namespace container_internal {
namespace hash_internal {
namespace {
class RandomDeviceSeedSeq {
public:
using result_type = typename std::random_device::result_type;
template <class Iterator>
void generate(Iterator start, Iterator end) {
while (start != end) {
*start = gen_();
++start;
}
}
private:
std::random_device gen_;
};
} // namespace
std::mt19937_64* GetSharedRng() {
RandomDeviceSeedSeq seed_seq;
static auto* rng = new std::mt19937_64(seed_seq);
return rng;
}
std::string Generator<std::string>::operator()() const {
// NOLINTNEXTLINE(runtime/int)
std::uniform_int_distribution<short> chars(0x20, 0x7E);
std::string res;
res.resize(32);
std::generate(res.begin(), res.end(),
[&]() { return chars(*GetSharedRng()); });
return res;
}
absl::string_view Generator<absl::string_view>::operator()() const {
static auto* arena = new std::deque<std::string>();
// NOLINTNEXTLINE(runtime/int)
std::uniform_int_distribution<short> chars(0x20, 0x7E);
arena->emplace_back();
auto& res = arena->back();
res.resize(32);
std::generate(res.begin(), res.end(),
[&]() { return chars(*GetSharedRng()); });
return res;
}
} // namespace hash_internal
} // namespace container_internal
ABSL_NAMESPACE_END
} // namespace absl
|
