man3/bstring.3

   1 .\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
   2 .\"
   3 .\" SPDX-License-Identifier: Linux-man-pages-copyleft
   4 .\"
   5 .\" References consulted:
   6 .\"     Linux libc source code
   7 .\"     Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
   8 .\"     386BSD man pages
   9 .\" Modified 1993-04-12, David Metcalfe
  10 .\" Modified 1993-07-24, Rik Faith (faith@cs.unc.edu)
  11 .\" Modified 2002-01-20, Walter Harms
  12 .TH BSTRING 3 2021-03-22 "Linux man-pages (unreleased)" "Linux Programmer's Manual"
  13 .SH NAME
  14 bcmp, bcopy, bzero, memccpy, memchr, memcmp, memcpy, memfrob, memmem,
  15 memmove, memset \- byte string operations
  16 .SH LIBRARY
  17 Standard C library
  18 .RI ( libc ", " \-lc )
  19 .SH SYNOPSIS
  20 .nf
  21 .B #include <string.h>
  22 .PP
  23 .BI "int bcmp(const void *" s1 ", const void *" s2 ", size_t " n );
  24 .PP
  25 .BI "void bcopy(const void *" src ", void *" dest ", size_t " n );
  26 .PP
  27 .BI "void bzero(void *" s ", size_t " n );
  28 .PP
  29 .BI "void *memccpy(void *" dest ", const void *" src ", int " c ", size_t " n );
  30 .PP
  31 .BI "void *memchr(const void *" s ", int " c ", size_t " n );
  32 .PP
  33 .BI "int memcmp(const void *" s1 ", const void *" s2 ", size_t " n );
  34 .PP
  35 .BI "void *memcpy(void *" dest ", const void *" src ", size_t " n );
  36 .PP
  37 .BI "void *memfrob(void *" s ", size_t " n );
  38 .PP
  39 .BI "void *memmem(const void *" haystack ", size_t " haystacklen ,
  40 .BI "             const void *" needle ", size_t " needlelen );
  41 .PP
  42 .BI "void *memmove(void *" dest ", const void *" src ", size_t " n );
  43 .PP
  44 .BI "void *memset(void *" s ", int " c ", size_t " n );
  45 .fi
  46 .SH DESCRIPTION
  47 The byte string functions perform operations on strings (byte arrays)
  48 that are not necessarily null-terminated.
  49 See the individual man pages
  50 for descriptions of each function.
  51 .SH NOTES
  52 The functions
  53 .BR bcmp (),
  54 .BR bcopy (),
  55 and
  56 .BR bzero ()
  57 are obsolete.
  58 Use
  59 .BR memcmp (),
  60 .BR memcpy (),
  61 and
  62 .BR memset ()
  63 instead.
  64 .\" The old functions are not even available on some non-GNU/Linux systems.
  65 .SH SEE ALSO
  66 .BR bcmp (3),
  67 .BR bcopy (3),
  68 .BR bzero (3),
  69 .BR memccpy (3),
  70 .BR memchr (3),
  71 .BR memcmp (3),
  72 .BR memcpy (3),
  73 .BR memfrob (3),
  74 .BR memmem (3),
  75 .BR memmove (3),
  76 .BR memset (3),
  77 .BR string (3)