MEMCPY(3P) POSIX Programmer's Manual MEMCPY(3P)PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux
implementation of this interface may differ (consult the corresponding
Linux manual page for details of Linux behavior), or the interface may
not be implemented on Linux.
NAMEmemcpy - copy bytes in memory
SYNOPSIS
#include <string.h>
void *memcpy(void *restrict s1, const void *restrict s2, size_t n);
DESCRIPTION
The memcpy() function shall copy n bytes from the object pointed to by
s2 into the object pointed to by s1. If copying takes place between
objects that overlap, the behavior is undefined.
RETURN VALUE
The memcpy() function shall return s1; no return value is reserved to
indicate an error.
ERRORS
No errors are defined.
The following sections are informative.
EXAMPLES
None.
APPLICATION USAGE
The memcpy() function does not check for the overflow of the receiving
memory area.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
The Base Definitions volume of IEEE Std 1003.1-2001, <string.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. In the
event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard
is the referee document. The original Standard can be obtained online
at http://www.opengroup.org/unix/online.html .
IEEE/The Open Group 2003 MEMCPY(3P)
