mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-01 11:52:47 +00:00
51 lines
625 B
C++
51 lines
625 B
C++
|
// { dg-do run }
|
||
|
|
|
||
|
|
#include <omp.h>
|
||
|
|
#include <assert.h>
|
||
|
|
|
||
|
|
struct B
|
||
|
|
{
|
||
|
|
static int count;
|
||
|
|
static B *expected;
|
||
|
|
|
||
|
|
B& operator=(const B &);
|
||
|
|
};
|
||
|
|
|
||
|
|
int B::count;
|
||
|
|
B * B::expected;
|
||
|
|
|
||
|
|
B& B::operator= (const B &b)
|
||
|
|
{
|
||
|
|
assert (&b == expected);
|
||
|
|
assert (this != expected);
|
||
|
|
#pragma omp atomic
|
||
|
|
count++;
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int nthreads;
|
||
|
|
|
||
|
|
void foo()
|
||
|
|
{
|
||
|
|
#pragma omp parallel
|
||
|
|
{
|
||
|
|
B b;
|
||
|
|
#pragma omp single copyprivate(b)
|
||
|
|
{
|
||
|
|
nthreads = omp_get_num_threads ();
|
||
|
|
B::expected = &b;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
int main()
|
||
|
|
{
|
||
|
|
omp_set_dynamic (0);
|
||
|
|
omp_set_num_threads (4);
|
||
|
|
foo();
|
||
|
|
|
||
|
|
assert (B::count == nthreads-1);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|