Deduce the template parameters VALUE_TYPE and ALLOCATOR from the parameters supplied to the constructor of deque.
Declared in <bslstl_deque.h>
template<
ranges::input_range t_RANGE,
class t_ALLOCATOR = allocator<ranges::range_value_t<t_RANGE>>>
deque<ranges::range_value_t<t_RANGE>, t_ALLOCATOR>(
std::from_range_t,
t_RANGE&&,
t_ALLOCATOR) -> deque<ranges::range_value_t<t_RANGE>, t_ALLOCATOR>;