scc

simple c99 compiler
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memcpy.3 (590B)

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