Deduce the template parameters KEY and VALUE from the value_type of the initializer_list supplied to the constructor of multimap. Deduce the template parameters COMPARATOR and ALLOCATOR from the other parameters passed to the constructor. This deduction guide does not participate unless the supplied allocator meets the requirements of a standard allocator.
Declared in <bslstl_multimap.h>
template<
class KEY,
class VALUE,
class COMPARATOR = std::less<KEY>,
class ALLOCATOR = bsl::allocator<bsl::pair<KEY const, VALUE>>>
requires !bsl::IsStdAllocator_v<COMPARATOR> && bsl::IsStdAllocator_v<ALLOCATOR>
multimap<KEY, VALUE, COMPARATOR, ALLOCATOR>(
std::initializer_list<pair<KEY const, VALUE>>,
COMPARATOR,
ALLOCATOR) -> multimap<KEY, VALUE, COMPARATOR, ALLOCATOR>;