_toupper(3C) Standard C Library Functions _toupper(3C)
NAME
_toupper - transliterate lower-case characters to upper-case
SYNOPSIS
#include <ctype.h>
int _toupper(int c);
DESCRIPTION
The _toupper() macro is equivalent to toupper(3C) except that the argument c must be a lower-case letter.
RETURN VALUES
On successful completion, _toupper() returns the upper-case letter corresponding to the argument passed.
ERRORS
No errors are defined.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|CSI |Enabled |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
islower(3C), toupper(3C), attributes(5), standards(5)
SunOS 5.10 24 Jul 2002 _toupper(3C)
