Perform a lexicographic three-way comparison of lhs and rhs.
Declared in <bslstl_map.h>
template<
class KEY,
class VALUE,
class COMPARATOR,
class ALLOCATOR>
BloombergLP::bslalg::SynthThreeWayUtil::Result<bsl::pair<KEY const, VALUE>>
operator<=>(
map<KEY, VALUE, COMPARATOR, ALLOCATOR> const& lhs,
map<KEY, VALUE, COMPARATOR, ALLOCATOR> const& rhs);Perform a lexicographic three-way comparison of the specified lhs and the specified rhs maps by using the comparison operators of `bsl::pair<const KEY, VALUE>` on each element; return the result of that comparison.
result of the three-way comparison
| Name | Description |
|---|---|
| lhs | left-hand map to compare |
| rhs | right-hand map to compare |