.TH LIBSIMPLE_STRRNCASESTR 3 libsimple
.SH NAME
libsimple_strrncasestr \- find a substring in a string

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

char *libsimple_strrncasestr(const char *\fIhaystack\fP, const char *\fIneedle\fP, size_t \fIn\fP);

#ifndef strrncasestr
# define strrncasestr libsimple_strrncasestr
#endif
.fi
.PP
Link with
.IR \-lsimple .

.SH DESCRIPTION
The
.BR libsimple_strrncasestr ()
function scans the string
.IR haystack ,
truncated to
.I n
bytes unless it is shorter,
the last occurrence of the substring
.IR needle .
.PP
The comparison is case-insensitive.

.SH RETURN VALUE
The
.BR libsimple_strrncasestr ()
function returns the pointer
.I haystack
with a maximal offset such that
.I r
begins with
.IR needle ,
where
.I r
is the returned pointer.
If no such offset exists,
.B NULL
is returned.

.SH ERRORS
The
.BR libsimple_strrncasestr ()
function 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_strrncasestr ()
T}	Thread safety	MT-Safe
T{
.BR libsimple_strrncasestr ()
T}	Async-signal safety	AS-Safe
T{
.BR libsimple_strrncasestr ()
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_strrnstr (3),
.BR libsimple_strncasestr (3),
.BR libsimple_strrcasestr (3),
.BR libsimple_memrcasemem (3)