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Man page of _toupper
_toupper
Section: Standard C Library Functions (3C)
Updated: 24 Jul 2002
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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)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUES
-
- ERRORS
-
- ATTRIBUTES
-
- SEE ALSO
-
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