[#A6FA49039B2AEF62F687BE8AA2C4AAAC9D8871C3]
Return true if s0 is less than s1 using case-insensitive comparison
bool ci_is_less( core::string_view s0, core::string_view s1) noexcept;
The comparison algorithm implements a case-insensitive total order on the set of all strings; however, it is not a lexicographical comparison. The function is defined only for strings containing low-ASCII characters.
assert( ! ci_is_less( "Boost", "boost" ) );