57     __TBB_ASSERT( pos>=0, nullptr);  in set_one_bit()
58     __TBB_ASSERT( pos<int(sizeof(population_t)*CHAR_BIT), nullptr);  in set_one_bit()
63     __TBB_ASSERT( pos>=0, nullptr);  in clear_one_bit()
64     __TBB_ASSERT( pos<int(sizeof(population_t)*CHAR_BIT), nullptr);  in clear_one_bit()
69     __TBB_ASSERT( pos>=0, nullptr);  in is_bit_set()
70     __TBB_ASSERT( pos<int(sizeof(population_t)*CHAR_BIT), nullptr);  in is_bit_set()
135         d1::task* result = nullptr;  in get_item()
136         __TBB_ASSERT(!queue.empty(), nullptr);  in get_item()
151     lane_t* lanes{nullptr};
162         __TBB_ASSERT( N <= sizeof(population_t) * CHAR_BIT, nullptr);  in initialize()
167         __TBB_ASSERT( !population.load(std::memory_order_relaxed), nullptr);  in initialize()
194         d1::task* popped = nullptr;  in pop()
206         d1::task* result = nullptr;  in pop_specific()
247             return nullptr;  in try_pop()
248         d1::task* result = nullptr;  in try_pop()
261         __TBB_ASSERT( !queue.empty(), nullptr);  in look_specific()
272                     *curr = nullptr;      // grabbing task with the same isolation  in look_specific()
277         return nullptr;  in look_specific()