.TH LIBSIMPLE_STRNTOUPPER 3 libsimple
.SH NAME
libsimple_strntoupper, libsimple_stpntoupper \- convert a string to upper case

.SH SYNOPSIS
.nf
#include <libsimple.h>

static inline char *libsimple_strntoupper(char *\fIdest\fP, const char *\fIsrc\fP, size_t \fIn\fP);
char *libsimple_stpntoupper(char *\fIdest\fP, const char *\fIsrc\fP, size_t \fIn\fP);

#ifndef strntoupper
# define strntoupper libsimple_strntoupper
#endif
#ifndef stpntoupper
# define stpntoupper libsimple_stpntoupper
#endif
.fi
.PP
Link with
.IR \-lsimple .

.SH DESCRIPTION
The
.BR libsimple_strntoupper ()
and
.BR libsimple_stpntoupper ()
functions copies and covert a string, including the
NUL byte that terminates it, to upper case.
The string
.I src
is copied into
.IR dest ,
with all lower case ASCII characters converted to
upper case; however no more than
.I n
bytes will be copied or coverted. The arrays may overlap,
and there is an optimisation for the case where
.IR dest==src .

.SH RETURN VALUE
The
.BR libsimple_strntoupper ()
function returns the pointer
.IR dest .
.PP
The
.BR libsimple_stpntoupper ()
function returns the pointer
end of the string copied into
.IR dest ,
that is
.IR &dest[strnlen(src,n)] .

.SH ERRORS
The
.BR libsimple_strntoupper ()
and
.BR libsimple_stpntoupper ()
functions cannot fail.

.SH ATTRIBUTES
For an explanation of the terms used in this section, see
.BR attributes (7).
.TS
allbox;
lb lb lb
l l l.
Interface	Attribute	Value
T{
.BR libsimple_strntoupper (),
.br
.BR libsimple_stpntoupper ()
T}	Thread safety	MT-Safe
T{
.BR libsimple_strntoupper (),
.br
.BR libsimple_stpntoupper ()
T}	Async-signal safety	AS-Safe
T{
.BR libsimple_strntoupper (),
.br
.BR libsimple_stpntoupper ()
T}	Async-cancel safety	AC-Safe
.TE

.SH EXAMPLES
None.

.SH APPLICATION USAGE
None.

.SH RATIONALE
None.

.SH FUTURE DIRECTIONS
None.

.SH NOTES
None.

.SH BUGS
None.

.SH SEE ALSO
.BR libsimple_strntolower (3),
.BR libsimple_strnreplace (3),
.BR libsimple_strnntoupper (3),
.BR libsimple_memntoupper (3)