.TH LIBSIMPLE_MEMEQLEN 3 libsimple
.SH NAME
libsimple_memeqlen \- check initial commonality

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

size_t libsimple_memeqlen(const void *\fIa\fP, size_t \fIn\fP, const void *\fIb\fP, size_t \fIm\fP);

#ifndef memeqlen
# define memeqlen libsimple_memeqlen
#endif
.fi
.PP
Link with
.IR \-lsimple .

.SH DESCRIPTION
The
.BR libsimple_memeqlen ()
function scans the number of bytes the byte array
.IR a ,
with size
.IR n ,
have in common the byte array
.IR b ,
with size
.IR m ,
at their beginnings.
.PP
The comparison is case-sensitive.

.SH RETURN VALUE
The
.BR libsimple_memeqlen ()
function returns the number of bytes
.I a
and
.I b
have in common at their beginnings.

.SH ERRORS
The
.BR libsimple_memeqlen ()
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_memeqlen ()
T}	Thread safety	MT-Safe
T{
.BR libsimple_memeqlen ()
T}	Async-signal safety	AS-Safe
T{
.BR libsimple_memeqlen ()
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 HISTORY
libsimple 1.1

.SH BUGS
None.

.SH SEE ALSO
.BR libsimple_memeq (3),
.BR libsimple_memcaseeqlen (3),
.BR libsimple_memreqlen (3),
.BR libsimple_strneqlen (3),
.BR libsimple_streqlen (3)