Erase all the elements in the specified deque deq that satisfy the specified predicate predicate. Return the number of elements erased.
Declared in <bslstl_deque.h>
template<
class VALUE_TYPE,
class ALLOCATOR,
class PREDICATE>
deque<VALUE_TYPE, ALLOCATOR>::size_type
erase_if(
deque<VALUE_TYPE, ALLOCATOR>& deq,
PREDICATE predicate);