220 31018 article Path: news.gmane.org!.POSTED!not-for-mail From: Victor Dyachenko Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: operator<< for std::string Date: Tue, 21 Feb 2017 07:42:58 -0800 (PST) Lines: 105 Approved: news@gmane.org Message-ID: References: <7552b5b4-e778-46a2-a6f8-fabca5b16dc4@isocpp.org> <75e1c827-a2af-4dfa-9426-dc5a00a0d408@isocpp.org> <85aefeb5-3c83-47de-a91d-3aef22d6a1ec@isocpp.org> <5f77cec0-c0b3-4993-9c3e-318c7e985f7f@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_1439_932595324.1487691778884" X-Trace: blaine.gmane.org 1487691783 23323 195.159.176.226 (21 Feb 2017 15:43:03 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 21 Feb 2017 15:43:03 +0000 (UTC) To: ISO C++ Standard - Future Proposals Original-X-From: std-proposals+bncBCJ4XEO5S4ERBA6AWHCQKGQE3IHESNY@isocpp.org Tue Feb 21 16:42:57 2017 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-oi0-f71.google.com ([209.85.218.71]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cgCac-0005Df-H5 for gclcip-std-proposals@m.gmane.org; Tue, 21 Feb 2017 16:42:54 +0100 Original-Received: by mail-oi0-f71.google.com with SMTP id s131sf21305190oia.6 for ; Tue, 21 Feb 2017 07:43:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=isocpp-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:message-id:in-reply-to:references:subject:mime-version :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=1XQKB1NBw5IiImOvGJ1vLvCWs8/P8IVHB1JuxeUqSBc=; b=Ps34szAqoZhM2sNBBR/N+TZqLBysgRqpad0iw2nZlBvMj+amQL2i23sHIMTDDs8Qtd 6/3i2Pjs6jVPTuFyAFVDmuYJPgzLcF8fLxKlKK9qbPpfaWo9WO3vb3xta+KHo3Xnrcxr Heqc+DU6DVHPoC6XAHm7j2DlH3u6ir/xBunsbRSSm+m+BlQ91KSwl/eO+GxGy4f9qXMo PalGAXA2k4w878pSLoUsWoIZU6Q4bZP/y2h86u/bZQpBo/sqrNsPoozwDf+SGgDeezJS o4CqIkkYuO/kj78Lhn8bQWdmVCppam2e2QfgepWOYid5TFuHOsa1AAjC3FeS3BP9ogUC 8+Sw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:message-id:in-reply-to:references:subject:mime-version :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=1XQKB1NBw5IiImOvGJ1vLvCWs8/P8IVHB1JuxeUqSBc=; b=FMl6LJyrsKAC1CRbdxitI+gbH59vZFBUBFuKVejZ/vWQZmVRoI8MqKRxtb1pDe1B4H y+7TmJKtOaS+QmEZWOwSeVFwbCF6/Va58UFqF2O8vvMBf0jcO/6bnkEg5hsiQ046NHKS e6K6LteKnk510AeKKanNJVvHyE4PB8D4nebD2lKkFOlwXfNkHlYjHQsFdPgQKmQjcHMo JY/XT7uwfJ4YMxXRV4J51wdQY6OuHC1TxMoJBKFpcZSlXHiLXOr9koZilqgqszyz6em6 b7iQiZeHIOCGcaSnXb1LhcCq3bO2P7EyYBmVFUzjJjQX2NYd3ZCdLkAwVvjUXnx9Pa7U ohmA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:message-id:in-reply-to:references :subject:mime-version: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=1XQKB1NBw5IiImOvGJ1vLvCWs8/P8IVHB1JuxeUqSBc=; b=pfC7SR27aAkstUJSR4TB5kBkFE1VPr7ZNtYDiPVvcFZPKCLur9w2GwO0hzfVywaGYF O3WEJjov2GStLrM6mBeaf4dpK3oF7RdxT6V1dDgb4EF1ZikgOJdlxBMudVYlctVH2YoV KUYnqQRw5MPRVpJCFSH76J/x+ejNEb9zb6UMR9NSIDYmsFpxH75aKZ6RAZCO0Y1YzIUy 5OFbfPJ8TreyiH4/GusItjAwJYpEZM02PmlTIs+x+65eDvoBVhZJsVhZHWtKZIqYm83e 8PLjwuwSbpjNsGpd/fUk7Ql4xdY9agDHivd/MytmgvAIGO19ZRMENV2+cCFpWZ6NZ75b q13Q== X-Gm-Message-State: AMke39klcpxLBHD9Sa7UL2Unq1y6uixdfSdN+Jf2gwZaQXkyP8bOR5OFPLePVVpnEKclkA== X-Received: by 10.157.54.55 with SMTP id w52mr9169746otb.135.1487691780141; Tue, 21 Feb 2017 07:43:00 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.157.37.235 with SMTP id q98ls10747522ota.1.gmail; Tue, 21 Feb 2017 07:42:59 -0800 (PST) X-Received: by 10.157.8.10 with SMTP id 10mr1731674oty.19.1487691779405; Tue, 21 Feb 2017 07:42:59 -0800 (PST) In-Reply-To: <5f77cec0-c0b3-4993-9c3e-318c7e985f7f@isocpp.org> X-Original-Sender: Victor.Dyachenko@gmail.com Precedence: list Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org List-ID: 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:31018 Archived-At: ------=_Part_1439_932595324.1487691778884 Content-Type: multipart/alternative; boundary="----=_Part_1440_1786502454.1487691778885" ------=_Part_1440_1786502454.1487691778885 Content-Type: text/plain; charset=UTF-8 On Tuesday, February 21, 2017 at 6:39:31 PM UTC+3, Victor Dyachenko wrote: > > On Tuesday, February 21, 2017 at 6:31:01 PM UTC+3, Nicol Bolas wrote: >> >> On Tuesday, February 21, 2017 at 1:31:33 AM UTC-5, Victor Dyachenko wrote: >>> >>> Streams are NOT alternative to std::string! By many reasons. >>> >> >> Can you list some of them? Because many languages' standard libraries >> have a distinction between the every-day string type and "string builder" >> types. Java >> >> and C# >> >> being prominent examples. >> >> The only problem with C++'s stringstream is the cost of moving strings >> into/outof them. And that proposal would remove that cost. >> > > Top two: > > 1) Streams are slow (overcomplicated design, virtual calls, locales, too > generic) > 2) Streams are huge - statically linked "hello world" is more than 1Mb > (again mostly because of locales) > And that's why now we have std::to_chars/from_chars() -- 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. To view this discussion on the web visit https://groups.google.com/a/isocpp.org/d/msgid/std-proposals/c65781eb-0611-40f0-9517-74e4b505a26d%40isocpp.org. ------=_Part_1440_1786502454.1487691778885 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
On Tuesday, February 21, 2017 at 6:39:31 PM UTC+3, Victor = Dyachenko wrote:
On Tuesday, February 21, 2017 at 6:31:01 PM UTC+3, Nicol Bolas wrote:
On Tuesday, February = 21, 2017 at 1:31:33 AM UTC-5, Victor Dyachenko wrote:
Streams are NOT alternative to std::stri= ng! By many reasons.

Can you list some of th= em? Because many languages' standard libraries have a distinction betwe= en the every-day string type and "string builder" types. Java and= C# being prominent examples.

The only pr= oblem with C++'s stringstream is the cost of moving strings into/outof = them. And that proposal would remove that cost.

Top two:

1) Streams are slow (overcomplicated design, virt= ual calls, locales, too generic)
2) Streams are huge - statically linked= "hello world" is more than 1Mb (again mostly because of locales)=

And that's why now we have std::to_ch= ars/from_chars()

--
You received this message because you are subscribed to the Google Groups &= quot;ISO C++ Standard - Future Proposals" group.
To unsubscribe from this group and stop receiving emails from it, send an e= mail to std-proposa= ls+unsubscribe@isocpp.org.
To post to this group, send email to std-proposals@isocpp.org.
To view this discussion on the web visit https://groups.google.= com/a/isocpp.org/d/msgid/std-proposals/c65781eb-0611-40f0-9517-74e4b505a26d= %40isocpp.org.
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