Perform a lexicographic three‐way comparison of the specified lhs and the specified rhs strings by using CHAR_TRAITS::eq on each character; return the result of that comparison.
Synopsis
Declared in <bslstl_string.h>
template<
class CHAR_TYPE,
class CHAR_TRAITS,
class ALLOC>
bsl::String_ComparisonCategoryType<CHAR_TRAITS>
operator<=>(
basic_string<CHAR_TYPE, CHAR_TRAITS, ALLOC> const& lhs,
basic_string<CHAR_TYPE, CHAR_TRAITS, ALLOC> const& rhs) noexcept;
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