//add an element to the vector using three separate tasks
parallel_invoke( [&]{ v.local().push_back(1); },
[&]{ v.local().push_back(2); },
[&]{ v.local().push_back(3); }
);
//merge the task-local copies using combine_each
vector< int> result1;
v.combine_each(
[&](vector< int>& local)
{
result1.insert(result1.end(),
local.begin(), local.end());
}
);
//merge the task-local copies using combine
vector< int> result2 = v.combine(
[](vector< int> left, vector< int> right)->vector< int>{










