220 18674 <51565265-ec78-4f6b-b684-64aed8fd9a57@isocpp.org> article Path: news.gmane.org!not-for-mail From: shatilov.diman@gmail.com Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: if not (expression) like python Date: Fri, 19 Jun 2015 04:38:11 -0700 (PDT) Lines: 96 Approved: news@gmane.org Message-ID: <51565265-ec78-4f6b-b684-64aed8fd9a57@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_836_1980042915.1434713891594" X-Trace: ger.gmane.org 1434713907 17017 80.91.229.3 (19 Jun 2015 11:38:27 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 19 Jun 2015 11:38:27 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCH7FVOKRQGRBJH6R6WAKGQEPWPUWVY@isocpp.org Fri Jun 19 13:38:14 2015 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-oi0-f69.google.com ([209.85.218.69]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Z5ucf-0005Rx-SW for gclcip-std-proposals@m.gmane.org; Fri, 19 Jun 2015 13:38:14 +0200 Original-Received: by oibr82 with SMTP id r82sf159080890oib.1 for ; Fri, 19 Jun 2015 04:38:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:message-id:subject:mime-version:content-type :x-original-sender:reply-to:precedence:mailing-list:list-id :x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=ruX7/U9HME/92LRLhv1ybBvV7kAgi7jGwv/EOfBPmO4=; b=cUPweNUDeC51V+VUflyxRv6IXwmOXC/OWEpmxH4Nr55FTDr/lAYSsYQj4VtRRmugD8 GoZfjGOmSJmuGm46w6dw4xsZFdPMJjFtWH6yIS8I/l5zKcSCjGYzPQRLHW7PvqgaRsli NWWFFAj1FVAZjzmYR3Ffz41tkQaWP09Nzc5GUksP7cvSRLWTnaeDkSF0BVklbAQ2XtYB cy9ZWds+LirPcbap/WMPm/WFZC39VIYzGbE8IFSspNU75W5wv+yC4sxTKFg1AvsOiHjR iBqk1K9p5RxiNldlQgQLqq/aiMk7wjmPgJCu4MrgOqfl0/BCiikIqx2gCHzIiqn78D+D i9WA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:message-id:subject:mime-version :content-type:x-original-sender:reply-to:precedence:mailing-list :list-id:x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=ruX7/U9HME/92LRLhv1ybBvV7kAgi7jGwv/EOfBPmO4=; b=XBga47kxhN1BeR6vwkqxU83cPa9P8+M070HanGjP2SSVM7KClshMtNV/6JvoQQRDZF UC6cyvVZCgyrc0YoKvQGm5plIHT7r5/4oyLvK1a2wKBVDwRd4W1FwiEqpBg5OafxGX2G BlXR6gfC00hjcL8vPV7COMMLAd7rKLoLlke7lWrDllmyZMBpNLKSFY5ub9TNTSA56hkW OREuEnpL2t950Fh1YiU97ioxd/Ey/uIOT0KIlEcpvlq4Q+eCGVxqOqWRZUguGtdtPzco /4UX5UmlwKEEuFg/7kvenHWcbE4kbqsoLJPoS8iqeErkDfG4hXPUwSFohfgXUZqtpDGH rvjA== X-Gm-Message-State: ALoCoQnr24JKfzIuLx5FHWrED+qGBXcx/77F8BjgTTUVpxi4rTG2UvF422BRW/iWWvDhH/2PGj5m X-Received: by 10.182.248.195 with SMTP id yo3mr19694384obc.34.1434713893001; Fri, 19 Jun 2015 04:38:13 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.140.21.234 with SMTP id 97ls2023360qgl.36.gmail; Fri, 19 Jun 2015 04:38:12 -0700 (PDT) X-Received: by 10.140.36.234 with SMTP id p97mr90409qgp.28.1434713892281; Fri, 19 Jun 2015 04:38:12 -0700 (PDT) X-Original-Sender: shatilov.diman@gmail.com Precedence: list Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org List-ID: X-Spam-Checked-In-Group: std-proposals@isocpp.org X-Google-Group-Id: 399137483710 List-Post: , List-Help: , List-Archive: List-Subscribe: , List-Unsubscribe: , Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:18674 Archived-At: ------=_Part_836_1980042915.1434713891594 Content-Type: multipart/alternative; boundary="----=_Part_837_1174678493.1434713891594" ------=_Part_837_1174678493.1434713891594 Content-Type: text/plain; charset=UTF-8 Hello all! Sorry for my poor English. I suggest to add new keyword '*not*' to the c++17, like in python. I think if not (bag.empty()) {} is more readable, then if (bag.empty() == false) {} //or if (!bag.empty()) {} Besides that in last case keyword '!' could be lost while merge branches or refactor bad code like that: if(!bag||!bag->empty()||bag->full()) {} I'd like read your opinion or hear constructive criticism. Thank you! -- --- You received this message because you are subscribed to the Google Groups "ISO C++ Standard - Future Proposals" group. To unsubscribe from this group and stop receiving emails from it, send an email to std-proposals+unsubscribe@isocpp.org. To post to this group, send email to std-proposals@isocpp.org. Visit this group at http://groups.google.com/a/isocpp.org/group/std-proposals/. ------=_Part_837_1174678493.1434713891594 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hello all!

Sorry for my poor English.

I suggest to add new keyword 'not' to the c+= +17, like in python.

I think
i= f not = (bag.empty()) {}
is more re= adable, then
if (bag.empty() =3D=3D false) {}
//or
if (!bag.empty()) {}

Besides that in last case keyword '!' could be lost w= hile merge branches or refactor bad code like that:
if(!bag= ||!bag->empty()||bag->full())=  {}
I'd like read your opinion or hear constructive criticism.

<= /div>
Thank you!

--

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