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BCOPY(3)	       FreeBSD Library Functions Manual		      BCOPY(3)

NAME
     bcopy -- copy byte	string

LIBRARY
     Standard C	Library	(libc, -lc)

SYNOPSIS
     #include <strings.h>

     void
     bcopy(const void *src, void *dst, size_t len);

DESCRIPTION
     The bcopy() function copies len bytes from	string src to string dst.  The
     two strings may overlap.  If len is zero, no bytes	are copied.

SEE ALSO
     memccpy(3), memcpy(3), memmove(3),	strcpy(3), strncpy(3)

HISTORY
     A bcopy() function	appeared in 4.2BSD.  Its prototype existed previously
     in	<string.h> before it was moved to <strings.h> for IEEE Std 1003.1-2001
     (``POSIX.1'') compliance.

     IEEE Std 1003.1-2008 (``POSIX.1'')	removes	the specification of bcopy()
     and it is marked as LEGACY	in IEEE	Std 1003.1-2004	(``POSIX.1'').	New
     programs should use memmove(3).  If the input and output buffer do	not
     overlap, then memcpy(3) is	more efficient.	 Note that bcopy() takes src
     and dst in	the opposite order from	memmove() and memcpy().

FreeBSD	11.1			August 24, 2015			  FreeBSD 11.1

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | SEE ALSO | HISTORY

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