Perform a lexicographic three-way comparison of the specified lhs and the specified rhs lists by using the comparison operators of VALUE on each element; return the result of that comparison.
Declared in <bslstl_list.h>
template<
class VALUE,
class ALLOCATOR>
BloombergLP::bslalg::SynthThreeWayUtil::Result<VALUE>
operator<=>(
list<VALUE, ALLOCATOR> const& lhs,
list<VALUE, ALLOCATOR> const& rhs);