1.\" $NetBSD: primes.6,v 1.3 2008/02/03 03:29:17 wiz Exp $ 2.\" 3.\" Copyright (c) 1989, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" This code is derived from software contributed to Berkeley by 7.\" Landon Curt Noll. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. Neither the name of the University nor the names of its contributors 18.\" may be used to endorse or promote products derived from this software 19.\" without specific prior written permission. 20.\" 21.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31.\" SUCH DAMAGE. 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 3, 2008 41.Dt PRIMES 6 42.Os 43.Sh NAME 44.Nm primes 45.Nd generate primes 46.Sh SYNOPSIS 47.Nm primes 48.Op Fl d 49.Op Ar start Op Ar stop 50.Sh DESCRIPTION 51The 52.Nm 53utility prints primes in ascending order, one per line, starting 54at or above 55.Ar start 56and continuing until, but not including 57.Ar stop . 58The 59.Ar start 60value must be at least 0 and not greater than 61.Ar stop . 62The 63.Ar stop 64value must not be greater than 4294967295. 65The default value of 66.Ar stop 67is 4294967295. 68.Pp 69When the 70.Nm 71utility is invoked with no arguments, 72.Ar start 73is read from standard input. 74.Ar stop 75is taken to be 4294967295. 76The 77.Ar start 78value may be preceded by a single 79.Sq \&+ . 80The 81.Ar start 82value is terminated by a non-digit character (such as a newline). 83The input line must not be longer than 255 characters. 84When given the 85.Fl d 86argument, 87.Nm 88prints the difference between the current and the previous prime. 89.Sh DIAGNOSTICS 90Out of range or invalid input results in 91an appropriate error message 92being written to standard error. 93.Sh BUGS 94.Nm 95won't get you a world record. 96