string/FreeBSD/memcpy.3.patch

   1 --- memcpy.3.orig       Tue May 20 15:23:54 2003
   2 +++ memcpy.3    Sat Jun 21 06:17:05 2003
   3 @@ -58,6 +58,18 @@
   4  .Fa src
   5  to string
   6  .Fa dst .
   7 +If
   8 +.Fa src
   9 +and
  10 +.Fa dst
  11 +overlap, behaviour is undefined.
  12 +Applications in which
  13 +.Fa src
  14 +and
  15 +.Fa dst
  16 +might overlap should use
  17 +.Xr memmove 3
  18 +instead.
  19  .Sh RETURN VALUES
  20  The
  21  .Fn memcpy
  22 @@ -75,17 +87,3 @@
  23  function
  24  conforms to
  25  .St -isoC .
  26 -.Sh BUGS
  27 -In this implementation
  28 -.Fn memcpy
  29 -is implemented using
  30 -.Xr bcopy 3 ,
  31 -and therefore the strings may overlap.
  32 -On other systems, copying overlapping strings may produce surprises.
  33 -Programs intended to be portable should use
  34 -.Xr memmove 3
  35 -when
  36 -.Fa src
  37 -and
  38 -.Fa dst
  39 -may overlap.