mirror of
https://github.com/autc04/Retro68.git
synced 2024-08-18 12:29:08 +00:00
90 lines
1.1 KiB
C++
90 lines
1.1 KiB
C++
|
// { dg-do run }
|
||
|
|
||
|
#include <omp.h>
|
||
|
#include <assert.h>
|
||
|
|
||
|
struct B
|
||
|
{
|
||
|
static int icount;
|
||
|
static int dcount;
|
||
|
static int ccount;
|
||
|
static B *e_inner;
|
||
|
static B *e_outer;
|
||
|
|
||
|
B();
|
||
|
B(int);
|
||
|
B(const B &);
|
||
|
~B();
|
||
|
B& operator=(const B &);
|
||
|
void doit();
|
||
|
};
|
||
|
|
||
|
int B::icount;
|
||
|
int B::dcount;
|
||
|
int B::ccount;
|
||
|
B * B::e_inner;
|
||
|
B * B::e_outer;
|
||
|
|
||
|
B::B()
|
||
|
{
|
||
|
#pragma omp atomic
|
||
|
icount++;
|
||
|
}
|
||
|
|
||
|
B::B(int)
|
||
|
{
|
||
|
e_outer = this;
|
||
|
}
|
||
|
|
||
|
B::~B()
|
||
|
{
|
||
|
#pragma omp atomic
|
||
|
dcount++;
|
||
|
}
|
||
|
|
||
|
B& B::operator= (const B &b)
|
||
|
{
|
||
|
assert (&b == e_inner);
|
||
|
assert (this == e_outer);
|
||
|
#pragma omp atomic
|
||
|
ccount++;
|
||
|
return *this;
|
||
|
}
|
||
|
|
||
|
void B::doit()
|
||
|
{
|
||
|
#pragma omp critical
|
||
|
{
|
||
|
assert (e_inner == 0);
|
||
|
e_inner = this;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static int nthreads;
|
||
|
|
||
|
void foo()
|
||
|
{
|
||
|
B b(0);
|
||
|
|
||
|
#pragma omp parallel sections lastprivate(b)
|
||
|
{
|
||
|
#pragma omp section
|
||
|
nthreads = omp_get_num_threads ();
|
||
|
#pragma omp section
|
||
|
b.doit ();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
int main()
|
||
|
{
|
||
|
omp_set_dynamic (0);
|
||
|
omp_set_num_threads (4);
|
||
|
foo();
|
||
|
|
||
|
assert (B::ccount == 1);
|
||
|
assert (B::icount == nthreads);
|
||
|
assert (B::dcount == nthreads+1);
|
||
|
|
||
|
return 0;
|
||
|
}
|