.TH LIBSIMPLE_INCHRSET 3 2018-11-05 libsimple
.SH NAME
libsimple_inchrset, libsimple_inchrcaseset \- the whether a character belongs to a set
.SH SYNOPSIS
.nf
#include <libsimple.h>

static inline int libsimple_inchrset(int \fIc\fP, const char *\fIs\fP);
static inline int libsimple_inchrcaseset(int \fIc\fP, const char *\fIs\fP);

#ifndef inchrset
# define inchrset libsimple_inchrset
#endif
#ifndef inchrcaseset
# define inchrcaseset libsimple_inchrcaseset
#endif
.fi
.PP
Link with
.IR \-lsimple .
.SH DESCRIPTION
The
.BR libsimple_inchrset ()
and
.BR libsimple_inchrcaseset ()
functions scans the string
.I s
for an occurence of the character
.I c
(it is converted to a
.BR char ),
and returns a value indicating whether it exists in the string,
the scan will always fail if
.I c
is the NUL byte.
.PP
The comparison is case-sensitive for the
.BR libsimple_inchrset ()
function, and case-insensitive for the
.BR libsimple_inchrcaseset ()
function.
.SH RETURN VALUE
The
.BR libsimple_inchrset ()
and
.BR libsimple_inchrcaseset ()
functions returns 1 if
.I c
is not the NUL byte but can be found in
.IR s ;
otherwise 0 is returned.
.SH ERRORS
The
.BR libsimple_inchrset ()
and
.BR libsimple_inchrcaseset ()
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_inchrset (),
.br
.BR libsimple_inchrcaseset ()
T}	Thread safety	MT-Safe
T{
.BR libsimple_inchrset (),
.br
.BR libsimple_strchrnul ()
T}	Async-signal safety	AS-Safe
T{
.BR libsimple_inchrset (),
.br
.BR libsimple_strchrnul ()
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_strcasechr (3),
.BR strchr (3)