scc

 1.TH memcpy 3 scc\-VERSION
 2.SH NAME
 3memcpy - copy bytes between non-overlapping memory regions
 4.SH SYNOPSIS
 5#include <string.h>
 6
 7void *memcpy (void *restrict s1, const void *restrict s2, size_t n)
 8.SH DESCRIPTION
 9The
10.BR memcpy ()
11function copies
12.I n
13bytes from the memory block pointed to by
14.I s2
15into the memory block pointed to by
16.IR s1 .
17When
18.I n
19is zero, nothing is copied.
20The source and destination must not overlap;
21if they do, the behavior is undefined.
22.SH RETURN VALUE
23The
24.BR memcpy ()
25function always returns its first argument,
26.IR s1 .
27.SH STANDARDS
28ISO/IEC 9899:1999 Section 7.21.2.1