From owner-freebsd-hackers@FreeBSD.ORG Thu Aug 28 06:21:32 2014 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id DB3A0FE3 for ; Thu, 28 Aug 2014 06:21:32 +0000 (UTC) Received: from mail-pa0-x22b.google.com (mail-pa0-x22b.google.com [IPv6:2607:f8b0:400e:c03::22b]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id B250414F0 for ; Thu, 28 Aug 2014 06:21:32 +0000 (UTC) Received: by mail-pa0-f43.google.com with SMTP id et14so1219389pad.2 for ; Wed, 27 Aug 2014 23:21:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:content-type:content-transfer-encoding:subject:message-id:date :to:mime-version; bh=KdvTiZT+hEOiKCMvPxxJ3Y4hR1bpPfXWS427p7VKh2s=; b=VAxVxwf8TOpLtMqFCRCTV7MrGAQAuk/U0G5v0jeALjX0cdji0h8zcuaytrZ7bfD9Ek kP0+zyxbozsQlbymfL3Z/3vqKOulfqyEJIQ9ZsEJN8a6vKEq4qkJi/bv+8xiRpfpkTRP wiUwYIznHEdmbSWpw8J3HlWe6D6mr5sF9dvoQ/VD3fzKdDNnmjVJrbTkqeBotPrTkaze PqSM/aN5XfAjYvdSpe6+MV7bqWmulQLaI74+Krhd0X4BMF5btS9hzMYRkJJERA17aHN/ ZM/SJdIGoS3/2iSNFF80gzOtJlyh/G7tH0ZraYb5HjxFXJcNso3wjm16lP7+LWt+BwKA VM8g== X-Received: by 10.70.131.12 with SMTP id oi12mr2634995pdb.116.1409206890651; Wed, 27 Aug 2014 23:21:30 -0700 (PDT) Received: from [10.240.140.110] ([123.58.191.68]) by mx.google.com with ESMTPSA id b4sm3834340pdh.21.2014.08.27.23.21.29 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 27 Aug 2014 23:21:30 -0700 (PDT) From: Chenguang Li Content-Type: text/plain; charset="utf8"; Content-Transfer-Encoding: 8bit X-Pgp-Agent: GPGMail (null) Subject: On changing rand(3) to random(3) in awk(1) Message-Id: Date: Thu, 28 Aug 2014 14:21:10 +0800 To: freebsd-hackers@freebsd.org Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) X-Mailer: Apple Mail (2.1878.6) X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 28 Aug 2014 06:21:32 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Below is a summary of my previous posts to freebsd-questions: Since the original rand(3) could not provide a fair, "one-shot" randomness in awk(1), I am writing this to suggest that we change *rand(3) to *random(3), which only requires modifying a few lines of code[1], but will result in better random number generation. BTW, OSX & gawk already have this. Previous discussion can be found here[2]. What do you think? [1] My quick patch: https://gist.github.com/horus/03c3d7c17703536033c1 [2] https://lists.freebsd.org/pipermail/freebsd-questions/2014-August/260534.html Chenguang Li -----BEGIN PGP SIGNATURE----- iQIcBAEBCgAGBQJT/spWAAoJELG4cS+11lRhDp8QAMY6p/qdZNkhSQw0wlYKRCES KlcD9uGpNKnfN/Y+ihMnMYK/xZg7YO4DbxSSUNEW4z5gcI53W8TxkZJuvO68GCMj oNTxgpEl1OCmYAVNWxklyGvMp5YvEWpUrKkhWSPcB+JKS0s4QQuPGwidXfFEBq2n aS2dIZW5KhSzdx3PZ9qa81fxmB4uDHuw7wVxh4UWrvEbOe9BHQWbIGV9LIn30cLt 3VKmxk+WBdPTCF1Z+Jttrv7snU8oloNbGZXYX7FQBD+MlmPEWFSulSXoav3xT127 +9pKXCy9NpFem7lb+pEYyZ9XwAWp+xicNBNeIk0vG4G1lIllVx10qBDB5Gmqdtq8 OoZBVb4bhDDlWI7VsNzmbXQJOE8d0qpHKAeU7bNzbrbW/E9Zh4KytXho2tgigiMw htY6ljGXee2J4hH8NJ2+WewnTDJM/v1EHz6MWxjpdw25jiGJCuwuVxa03buuOvNa ZPLXpp+9UG48TxIeXbb2pDxGjKD+rIiA9K4bwK2888Of6tyANex9kNdLYnpxRejP VZzP2erTfF6xQY/9W3R2JigzR9ZsTsPJXBcQTf2bBO+9wUENh5ugF/Mna/mwaKf5 c0BmAW7IGqKCbbXY3y8tZvAHu5z2j826WQRvaXr3hjXM1ACRq1PyBR8mMlgM/yG+ /t/et/A01N3FoD4VOUJk =ihl+ -----END PGP SIGNATURE-----