Man Linux: Main Page and Category List

NAME

       memcpy - 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 .