[#boost-urls-grammar-lut_chars-2constructor-079]
= xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::xref:boost/urls/grammar.adoc[grammar]::xref:boost/urls/grammar/lut_chars.adoc[lut_chars]::lut_chars
:relfileprefix: ../../../../
:mrdocs:


Constructor

== Synopsis


Declared in `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/grammar/lut_chars.hpp#L157[boost/url/grammar/lut_chars.hpp]>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
lut_chars(char ch) noexcept;
----

== Description


This function constructs a character        set which has as a single member,        the character `ch`.


=== Example

[,cpp]
----
constexpr lut_chars asterisk( '*' );
----

=== Complexity

Constant.


=== Exception Safety

Throws nothing.



== Parameters


|===
| Name | Description

| *ch*
| A character.


|===



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