[#boost-urls-grammar-ci_is_equal]
= xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::xref:boost/urls/grammar.adoc[grammar]::ci_is_equal
:relfileprefix: ../../../
:mrdocs:


Return true if s0 equals s1 using case‐insensitive comparison

== Synopsis


Declared in `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/grammar/ci_string.hpp#L160[boost/url/grammar/ci_string.hpp]>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class String0,
    class String1>
bool
xref:boost/urls/grammar/ci_is_equal-0a.adoc[ci_is_equal](
    String0 const& s0,
    String1 const& s1)
requires ! std::is_convertible<
                String0, core::string_view>::value ||
            ! std::is_convertible<
                String1, core::string_view>::value;
----

[.small]#xref:boost/urls/grammar/ci_is_equal-0a.adoc[_» more..._]#

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
xref:boost/urls/grammar/ci_is_equal-0b.adoc[ci_is_equal](
    core::string_view s0,
    core::string_view s1) noexcept;
----

[.small]#xref:boost/urls/grammar/ci_is_equal-0b.adoc[_» more..._]#

== Description


The function is defined only for strings    containing low‐ASCII characters.


=== Example

[,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].






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