memmove(3)		    Library Functions Manual		      memmove(3)

NAME
     memmove - copy memory area

LIBRARY
     Standard C library (libc, -lc)

SYNOPSIS
     #include <string.h>

     void *memmove(size_t n;
		   void dest[n], const void src[n], size_t n);

DESCRIPTION
     The  memmove()  function copies n bytes from memory area src to memory area
     dest.  The memory areas may overlap: copying  takes  place	 as  though  the
     bytes  in src are first copied into a temporary array that does not overlap
     src or dest, and the bytes are then copied	 from  the  temporary  array  to
     dest.

RETURN VALUE
     The memmove() function returns a pointer to dest.

ATTRIBUTES
     For  an  explanation  of the terms used in this section, see attributes(7).
     allbox; lbx lb lb l l l.  Interface Attribute Value T{ memmove()
     T}	  Thread safety	  MT-Safe

STANDARDS
     C11, POSIX.1-2008.

HISTORY
     POSIX.1-2001, C89, SVr4, 4.3BSD.

SEE ALSO
     bcopy(3), bstring(3), memccpy(3), memcpy(3), strcpy(3),  strncpy(3),  wmem-
     move(3)

Linux man-pages 6.18		   2026-02-08			      memmove(3)