man3/bcopy.3

   1 '\" t
   2 .\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
   3 .\"
   4 .\" SPDX-License-Identifier: Linux-man-pages-copyleft
   5 .\"
   6 .\" References consulted:
   7 .\"     Linux libc source code
   8 .\"     Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
   9 .\"     386BSD man pages
  10 .\"
  11 .\" Modified Sun Feb 26 14:52:00 1995 by Rik Faith <faith@cs.unc.edu>
  12 .\" Modified Tue Oct 22 23:48:10 1996 by Eric S. Raymond <esr@thyrsus.com>
  13 .\" "
  14 .TH bcopy 3 (date) "Linux man-pages (unreleased)"
  15 .SH NAME
  16 bcopy \- copy byte sequence
  17 .SH LIBRARY
  18 Standard C library
  19 .RI ( libc ", " \-lc )
  20 .SH SYNOPSIS
  21 .nf
  22 .B #include <strings.h>
  23 .PP
  24 .BI "[[deprecated]] void bcopy(const void " src [. n "], void " dest [. n "], \
  25 size_t " n );
  26 .fi
  27 .SH DESCRIPTION
  28 The
  29 .BR bcopy ()
  30 function copies
  31 .I n
  32 bytes from
  33 .I src
  34 to
  35 .IR dest .
  36 The result is correct, even when both areas overlap.
  37 .SH RETURN VALUE
  38 None.
  39 .SH ATTRIBUTES
  40 For an explanation of the terms used in this section, see
  41 .BR attributes (7).
  42 .TS
  43 allbox;
  44 lbx lb lb
  45 l l l.
  46 Interface       Attribute       Value
  47 T{
  48 .na
  49 .nh
  50 .BR bcopy ()
  51 T}      Thread safety   MT-Safe
  52 .TE
  53 .sp 1
  54 .SH STANDARDS
  55 None.
  56 .SH HISTORY
  57 4.3BSD.
  58 .PP
  59 Marked as LEGACY in POSIX.1-2001: use
  60 .BR memcpy (3)
  61 or
  62 .BR memmove (3)
  63 in new programs.
  64 Note that the first two arguments
  65 are interchanged for
  66 .BR memcpy (3)
  67 and
  68 .BR memmove (3).
  69 POSIX.1-2008 removes the specification of
  70 .BR bcopy ().
  71 .SH SEE ALSO
  72 .BR bstring (3),
  73 .BR memccpy (3),
  74 .BR memcpy (3),
  75 .BR memmove (3),
  76 .BR strcpy (3),
  77 .BR strncpy (3)