man3/strfry.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 Sun Jul 25 10:39:43 1993 by Rik Faith (faith@cs.unc.edu)
  10 .TH strfry 3 (date) "Linux man-pages (unreleased)"
  11 .SH NAME
  12 strfry \- randomize a string
  13 .SH LIBRARY
  14 Standard C library
  15 .RI ( libc ", " \-lc )
  16 .SH SYNOPSIS
  17 .nf
  18 .BR "#define _GNU_SOURCE" "         /* See feature_test_macros(7) */"
  19 .B #include <string.h>
  20 .PP
  21 .BI "char *strfry(char *" string );
  22 .fi
  23 .SH DESCRIPTION
  24 The
  25 .BR strfry ()
  26 function randomizes the contents of
  27 .I string
  28 by randomly swapping characters in the string.
  29 The result is an anagram of
  30 .IR string .
  31 .SH RETURN VALUE
  32 The
  33 .BR strfry ()
  34 functions returns a pointer to the randomized
  35 string.
  36 .SH ATTRIBUTES
  37 For an explanation of the terms used in this section, see
  38 .BR attributes (7).
  39 .ad l
  40 .nh
  41 .TS
  42 allbox;
  43 lbx lb lb
  44 l l l.
  45 Interface       Attribute       Value
  46 T{
  47 .BR strfry ()
  48 T}      Thread safety   MT-Safe
  49 .TE
  50 .hy
  51 .ad
  52 .sp 1
  53 .SH STANDARDS
  54 The
  55 .BR strfry ()
  56 function is unique to the
  57 GNU C Library.
  58 .SH SEE ALSO
  59 .BR memfrob (3),
  60 .BR string (3)