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.\"     @(#)memccpy.3	8.1 (Berkeley) 6/9/93
.\" $FreeBSD: src/lib/libc/string/memccpy.3,v 1.7 2007/01/09 00:28:12 imp Exp $
.\"
.Dd June 9, 1993
.Dt MEMCCPY 3
.Os
.Sh NAME
.Nm memccpy
.Nd copy string until character found
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In string.h
.Ft void *
.Fo memccpy
.Fa "void *restrict s1"
.Fa "const void *restrict s2"
.Fa "int c"
.Fa "size_t n"
.Fc
.Sh DESCRIPTION
The
.Fn memccpy
function
copies bytes from string
.Fa s2
to string
.Fa s1 .
If the character
.Fa c
(as converted to an unsigned char) occurs in the string
.Fa s2 ,
the copy stops and a pointer to the byte after the copy of
.Fa c
in the string
.Fa s1
is returned.
Otherwise,
.Fa n
bytes are copied, and a NULL pointer is returned.
.Pp
The source and destination strings should not overlap, as the
behavior is undefined.
.Sh SEE ALSO
.Xr bcopy 3 ,
.Xr memcpy 3 ,
.Xr memmove 3 ,
.Xr strcpy 3
.Sh HISTORY
The
.Fn memccpy
function first appeared in
.Bx 4.4 .