Deduce the template parameters KEY and VALUE from the value_type of the iterators supplied to the constructor of map. This deduction guide does not participate unless the supplied allocator meets the requirements of a standard allocator.
Declared in <bslstl_map.h>
template<
class INPUT_ITERATOR,
class ALLOCATOR,
class KEY = BloombergLP::bslstl::IteratorUtil::IterKey_t<INPUT_ITERATOR>,
class VALUE = BloombergLP::bslstl::IteratorUtil::IterMapped_t<INPUT_ITERATOR>>
requires bsl::IsStdAllocator_v<ALLOCATOR>
map<KEY, VALUE, std::less<KEY>, ALLOCATOR>(
INPUT_ITERATOR,
INPUT_ITERATOR,
ALLOCATOR) -> map<KEY, VALUE, std::less<KEY>, ALLOCATOR>;