primes/primes.6

   1 .\"     $NetBSD: primes.6,v 1.2 2004/02/09 23:25:47 wiz Exp $
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   4 .\"     The Regents of the University of California.  All rights reserved.
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   6 .\" This code is derived from software contributed to Berkeley by
   7 .\" Landon Curt Noll.
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  32 .\"
  33 .\"     @(#)factor.6    8.1 (Berkeley) 5/31/93
  34 .\"
  35 .\"
  36 .\" By: Landon Curt Noll   chongo@toad.com,   ...!{sun,tolsoft}!hoptoad!chongo
  37 .\"
  38 .\"   chongo <for a good prime call: 391581 * 2^216193 - 1> /\oo/\
  39 .\"
  40 .Dd February 8, 2004
  41 .Dt PRIMES 6
  42 .Os
  43 .Sh NAME
  44 .Nm primes
  45 .Nd generate primes
  46 .Sh SYNOPSIS
  47 .Nm primes
  48 .Op Ar start Op Ar stop
  49 .Sh DESCRIPTION
  50 The
  51 .Nm
  52 utility prints primes in ascending order, one per line, starting
  53 at or above
  54 .Ar start
  55 and continuing until, but not including
  56 .Ar stop .
  57 The
  58 .Ar start
  59 value must be at least 0 and not greater than
  60 .Ar stop .
  61 The
  62 .Ar stop
  63 value must not be greater than 4294967295.
  64 The default value of
  65 .Ar stop
  66 is 4294967295.
  67 .Pp
  68 When the
  69 .Nm
  70 utility is invoked with no arguments,
  71 .Ar start
  72 is read from standard input.
  73 .Ar stop
  74 is taken to be 4294967295.
  75 The
  76 .Ar start
  77 value may be preceded by a single
  78 .Sq \&+ .
  79 The
  80 .Ar start
  81 value is terminated by a non-digit character (such as a newline).
  82 The input line must not be longer than 255 characters.
  83 .Sh DIAGNOSTICS
  84 Out of range or invalid input results in
  85 an appropriate error message
  86 being written to standard error.
  87 .Sh BUGS
  88 .Nm
  89 won't get you a world record.