tryPopFront overloads
Declared in <bdlcc_queue.h>
Remove up to the specified maxNumItems from the front of this queue. Optionally specify a buffer into which the items removed from the queue are loaded. If buffer is non-null, the removed items are appended to it as if by repeated application of buffer->push_back(popFront()) while the queue is not empty and maxNumItems have not yet been removed. The behavior is undefined unless maxNumItems >= 0. This method never blocks.
void
tryPopFront(int maxNumItems);If this queue is non-empty, remove the first item, load that item into the specified buffer, and return 0 indicating success. If this queue is empty, return a non-zero value with no effect on buffer or the state of this queue. This method never blocks.
int
tryPopFront(TYPE* buffer);Same as the preceding overload, appending removed items to buffer.
void
tryPopFront(
int maxNumItems,
bsl::vector<TYPE>* buffer);Same as the preceding overload, appending removed items to buffer.
void
tryPopFront(
int maxNumItems,
std::pmr::vector<TYPE>* buffer);Same as the preceding overload, appending removed items to buffer.
void
tryPopFront(
int maxNumItems,
std::vector<TYPE>* buffer);