---
name: "mtext_uppercase"
section: "3m17n"
platform: "linux"
package: "m17n-docs"
version: "1.8.4-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/mtext_uppercase"
---

# mtext\_uppercase(3m17n)

## NAME

mtext\_uppercase -

## SYNOPSIS

int **mtext\_uppercase** (**MText** \* *mt*)

## DESCRIPTION

Uppercase an M-text. The **mtext\_uppercase()** function destructively converts each character in M-text **mt** to uppercase. Adjacent characters in **mt** may affect the case conversion. If the Mlanguage text property is attached to **mt**, it may also affect the conversion. The length of **mt** may change. Characters that cannot be converted to uppercase is left unchanged. All the text properties are inherited.

## RETURN VALUE

This function returns the length of the updated **mt**.

## SEE ALSO

**mtext\_lowercase()**, **mtext\_titlecase()**

## COPYRIGHT

Copyright (C) 2001 Information-technology Promotion Agency (IPA)\
 Copyright (C) 2001-2011 National Institute of Advanced Industrial Science and Technology (AIST)\
 Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License  \<http://www.gnu.org/licenses/fdl.html\>.