[#absl-ascii_toupper]
= xref:absl.adoc[absl]::ascii&lowbar;toupper
:relfileprefix: ../
:mrdocs:

Returns the ASCII character, converting to upper&hyphen;case if lower&hyphen;case is passed&period; Note that characters values &gt; 127 are simply returned&period;

== Synopsis

Declared in `&lt;absl&sol;strings&sol;ascii&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
char
ascii&lowbar;toupper(unsigned char c);
----

== Return Value

The uppercase equivalent of `c`, or `c` if it has no uppercase form&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *c*
| The character to convert&period;
|===


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