Path: csiph.com!weretis.net!feeder6.news.weretis.net!news.linkpendium.com!news.linkpendium.com!panix!usenet.stanford.edu!not-for-mail From: Chet Ramey Newsgroups: gnu.bash.bug Subject: Re: Should [[ -v 1 ]] be supported? Date: Fri, 28 Dec 2018 18:20:44 -0600 Organization: ITS, Case Western Reserve University Lines: 15 Approved: bug-bash@gnu.org Message-ID: References: <5dac2cf2-2fac-0fd1-058f-6a84a3271738@case.edu> Reply-To: chet.ramey@case.edu NNTP-Posting-Host: lists.gnu.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Trace: usenet.stanford.edu 1546043009 26509 208.118.235.17 (29 Dec 2018 00:23:29 GMT) X-Complaints-To: action@cs.stanford.edu Cc: chet.ramey@case.edu, Bug reports for the GNU Bourne Again SHell To: Peng Yu , Martijn Dekker Envelope-to: bug-bash@gnu.org X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:reply-to:cc:subject:to:references:from:openpgp :autocrypt:organization:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=GWrrIL61qkT3DGBKjCE2HGhkwdBrBtHs6lpga+1UgFM=; b=a506MnLOGQM8x3FHy8LyRjrAMMiyRRL3jWdpYaJXoCxicdmOgZVJlilZAPQYZYG7Wa d0pwmZZi4bWiGQhRz7u5EJ9oEk9D0khzJzwnNZgxaVT56WSZ41aFp5AicDUZIEcHhpVG 7KWXI2grc2t91MjvEFyY/tEdEnJ07mJZD8cz8d1mL8NxtD3NwovEU8ldQBBV6n/jmcU7 foPbNMTQw1sxLC9jZskNyouVM6UCFsSjFVueGmblPBFhLrplAULPIt2L57+n0y9F9Gly PoBCjnagqFungsDUlno+njJ8ZT6EEflx45JBDqNzdNfDLg+zc89+ArJSjRgGb1LzCB7Z S6Bw== X-Gm-Message-State: AA+aEWYf+JiwO4/OIir79+KglIGRd2LFwmwMKGJNCSwcyJIThsT4JJ9x WU7ScN/az78spLRmxRtMW/Bj/5Xj6QxsvgnZXAjg08rk3ujmi21/seQj9tWJN/9KTLxZKeN0JR3 v9BCx5lYh79g= X-Received: by 2002:a02:5184:: with SMTP id s126mr18553329jaa.12.1546042846656; Fri, 28 Dec 2018 16:20:46 -0800 (PST) X-Google-Smtp-Source: AFSGD/W7JMrhMjWgyx4lHS9+ab7LYGTTwqBDkGDRzrTcFYPYumv+Lu1fWO8D1M1inrMb6D9MgyLsjQ== X-Received: by 2002:a02:5184:: with SMTP id s126mr18553322jaa.12.1546042846454; Fri, 28 Dec 2018 16:20:46 -0800 (PST) Openpgp: preference=signencrypt Autocrypt: addr=chet.ramey@case.edu; prefer-encrypt=mutual; keydata= mQGiBEEOsGwRBACFa0A1oa71HSZLWxAx0svXzhOZNQZOzqHmSuGOG92jIpQpr8DpvgRh40Yp AwdcXb8QG1J5yGAKeevNE1zCFaA725vGSdHUyypHouV0xoWwukYO6qlyyX+2BZU+okBUqoWQ koWxiYaCSfzB2Ln7pmdys1fJhcgBKf3VjWCjd2XJTwCgoFJOwyBFJdugjfwjSoRSwDOIMf0D /iQKqlWhIO1LGpMrGX0il0/x4zj0NAcSwAk7LaPZbN4UPjn5pqGEHBlf1+xDDQCkAoZ/VqES GZragl4VqJfxBr29Ag0UDvNbUbXoxQsARdero1M8GiAIRc50hj7HXFoERwenbNDJL86GPLAQ OTGOCa4W2o29nFfFjQrsrrYHzVtyA/9oyKvTeEMJ7NA3VJdWcmn7gOu0FxEmSNhSoV1T4vP2 1Wf7f5niCCRKQLNyUy0wEApQi4tSysdz+AbgAc0b/bHYVzIf2uO2lIEZQNNt+3g2bmXgloWm W5fsm/di50Gm1l1Na63d3RZ00SeFQos6WEwLUHEB0yp6KXluXLLIZitEJLQwQ2hldCBSYW1l eSAoQ2FzZSBzdGFuZGFyZCkgPGNoZXQucmFtZXlAY2FzZS5lZHU+iF8EExECAB8FAkPi19EC GwMHCwkIBwMCAQMVAgMDFgIBAh4BAheAAAoJELtYafBk6nSrelkAn31Gsuib7GcCZHbv5L5t VKYR9LklAJ4hzUHKA49Z0QXR+qCb80osIcmPSbkBDQRBDrBvEAQAkK6TAOKBEM+EC4j6V/7o /riVZqcgU5cid2qG9TXdwNtD9a3kvA/ObZBO93sX59wc6Bnwo4VJxsOmMlpGrAjJsxNwg3QH akEtf8LXRbVpj5xStdmBdQZUhIQyalo/2/TZq5OijtddUQcL5cs70hTv/FpT3wUvr2Xr8rjF 41IFEz8AAwcD/A0CZEGlzIrT5WCBnl6xBog/8vKiUCbarByat3d1mL6DbizvKNXQRTC9E/vE dENAWCQCjr75Bu55xT8n3SXGtWdDC5xmZ/P3OBYORP8yl8H8I1FIosWOFirbIeYdZPq8SPD1 HL+EXo9zSiHVrrZRJ19ooCKKbSdXHFCY+aJG+0KZiEkEGBECAAkFAkEOsG8CGwwACgkQu1hp 8GTqdKvjcACfZlkVCDwaz/NTO9cy3t69oWpVPNwAnRwe0qk/WL/gfhH346xh5B3HFbFN User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.3.3 In-Reply-To: Content-Language: en-US X-Junkmail-Status: score=8/90, host=mpv2-2015.case.edu X-Junkmail-PrAS-Raw: score=8/90, refid=2.7.2:2018.12.28.235116:17:8.317, ip=, rules=__YOUTUBE_RCVD, __X_GOOGLE_DKIM_SIGNATURE, __HAS_REPLYTO, __HAS_CC_HDR, __MULTIPLE_RCPTS_CC_X2, __CC_NAME, __CC_NAME_DIFF_FROM_ACC, __PHISH_SPEAR_SUBJ_TEAM, __SUBJ_REPLY, __BOUNCE_CHALLENGE_SUBJ, __BOUNCE_NDR_SUBJ_EXEMPT, __TO_MALFORMED_2, __TO_NAME, __TO_NAME_DIFF_FROM_ACC, __REFERENCES, __HAS_FROM, FROM_EDU_TLD, __HAS_MSGID, __SANE_MSGID, DATE_TZ_NA, __USER_AGENT, __MOZILLA_USER_AGENT, __MIME_VERSION, __IN_REP_TO, __CT, __CT_TEXT_PLAIN, __CTE, __REPLYTO_SAMEAS_FROM_ADDY, __REPLYTO_SAMEAS_FROM_ACC, __FROM_DOMAIN_IN_ANY_CC2, __REPLYTO_SAMEAS_FROM_DOMAIN, __ANY_URI, __URI_WITH_PATH, __URI_NO_WWW, __CP_URI_IN_BODY, __FRAUD_MONEY_CURRENCY_DOLLAR, __SUBJ_ALPHA_NEGATE, __URI_IN_BODY, __URI_NOT_IMG, __FORWARDED_MSG, __NO_HTML_TAG_RAW, BODYTEXTP_SIZE_3000_LESS, BODY_SIZE_500_599, __MIME_TEXT_P1, __MIME_TEXT_ONLY, __URI_NS, HTML_00_01, HTML_00_10, [TRUNCATED], so=2010-03-03 19:42:08, dmn=2016-08-03-0138 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] [fuzzy] X-Received-From: 129.22.103.227 X-BeenThere: bug-bash@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Bug reports for the GNU Bourne Again SHell List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com gnu.bash.bug:14991 On 12/27/18 7:24 PM, Peng Yu wrote: >> I don't believe that at all. The number of positional parameters is kept >> anyway. It's not recalculated when you compare it to another number, so >> it's just as fast as a simple comparison of two integers. > > Getting the number $# is slow. You haven't presented any evidence to support this, nor any basis for comparison. -- ``The lyf so short, the craft so long to lerne.'' - Chaucer ``Ars longa, vita brevis'' - Hippocrates Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/