scc

simple c99 compiler
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memmove.3 (553B)

      1 .TH memmove 3
      2 .SH NAME
      3 memmove - copy bytes between memory regions that may overlap
      4 .SH SYNOPSIS
      5 #include <string.h>
      6 
      7 void *memmove (void *s1, const void *s2, size_t n)
      8 .SH DESCRIPTION
      9 The
     10 .BR memmove ()
     11 function copies
     12 .I n
     13 bytes from the memory block pointed to by
     14 .I s2
     15 to the memory block pointed to by
     16 .IR s1 .
     17 Unlike
     18 .BR memcpy ,
     19 the source and destination regions may overlap.
     20 When
     21 .I n
     22 is zero, nothing is copied.
     23 .SH RETURN VALUE
     24 The
     25 .BR memmove ()
     26 function returns its first argument,
     27 .IR s1 .
     28 .SH STANDARDS
     29 ISO/IEC 9899:1999 Section 7.21.2.2