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