blob: 87f98b5e244bf881713b3babf6fc5e82bbcc2a5b (
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
|
/* { dg-do compile } */
/* { dg-options "-O3 -std=gnu++14" } */
template <typename Function>
bool run(const int item_count,
Function && process_range,
const int max_parallelism,
int* progress = nullptr)
{
if (max_parallelism <= 1)
{
if (progress == nullptr)
{
return process_range(0);
}
else
{
auto result = true;
for (int i = 0; i != item_count && result; ++i)
{
(*progress)++;
result = process_range(i);
}
return result;
}
}
if (max_parallelism > 10)
{
if (progress == nullptr)
{
return process_range(0);
}
else
{
auto result = true;
for (int i = 0; i != item_count && result; ++i)
{
(*progress)++;
result = process_range(i);
}
return result;
}
}
return false;
}
namespace
{
__attribute__((optimize(0))) bool worker_fun(const int)
{
return true;
}
}
void demo(int n)
{
for (int i = 0; i < n; ++i)
{
run(n, &worker_fun, n);
}
}
|