:relfileprefix: ../../../ [#boost-urls-grammar-ci_is_equal-0b] == xref:boost.adoc[pass:[boost]]::xref:boost/urls.adoc[pass:[urls]]::xref:boost/urls/grammar.adoc[pass:[grammar]]::ci_is_equal Return true if s0 equals s1 using case-insensitive comparison === Synopsis Declared in header `` [source,cpp,subs="verbatim,macros,-callouts"] ---- bool ci_is_equal( core::string_view s0, core::string_view s1) noexcept; ---- === Description The function is defined only for strings containing low-ASCII characters. [,cpp] ---- assert( ci_is_equal( "Boost", "boost" ) ); ---- === See Also xref:boost/urls/grammar/ci_compare.adoc[ci_compare] , xref:boost/urls/grammar/ci_is_less.adoc[ci_is_less] .