[#boost-urls-grammar-lut_chars-operator_call-09]
= xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::xref:boost/urls/grammar.adoc[grammar]::xref:boost/urls/grammar/lut_chars.adoc[lut&lowbar;chars]::operator()
:relfileprefix: ../../../../
:mrdocs:

Return true if ch is in the character set&period;

== Synopses

Declared in `&lt;https://www.github.com/boostorg/url/blob/develop/include/boost/url/grammar/lut_chars.hpp#Lundefined[boost&sol;url&sol;grammar&sol;lut&lowbar;chars&period;hpp]&gt;`

Return true if ch is in the character set&period;


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
bool
xref:boost/urls/grammar/lut_chars/operator_call-0f6.adoc[operator()](char ch) const noexcept;
----

[.small]#xref:boost/urls/grammar/lut_chars/operator_call-0f6.adoc[_» more&period;&period;&period;_]#

Return true if ch is in the character set&period;


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
bool
xref:boost/urls/grammar/lut_chars/operator_call-0fe.adoc[operator()](unsigned char ch) const noexcept;
----

[.small]#xref:boost/urls/grammar/lut_chars/operator_call-0fe.adoc[_» more&period;&period;&period;_]#

== Return Value

`true` if `ch` is in the set&period;

== Parameters

[cols="1,4"]
|===
|Name|Description

| *ch*
| The character to test&period;
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#
