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Article #309524Re: C++ i dyrektywa using
From: Wojciech Muła
Date: Sun, 03 Dec 2017 18:36
Date: Sun, 03 Dec 2017 18:36
25 lines
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2109 bytes
On Sunday, December 3, 2017 at 10:32:29 AM UTC+1, szyk...@gmail.com wrote: > Witam > Czytam sobie > http://en.cppreference.com/w/cpp/language/type_alias > > że using w C++11 poszerzono o: > "Type alias is a name that refers to a previously defined type (similar to typedef)." > > Czy to znaczy tylko tyle, że jest to inna (bardziej przyjazna?) forma typedef?!? Tak. typedef istniejący_typ nowa_nazwa; jest równoważne using nowa_nazwa = istniejący_typ; > Co jest bardziej zalecane?!? Oczywiście using, bo pozwala na więcej, szczególnie jeśli chodzi o templaty. Na stronie, którą linkujesz są zresztą fajne przykłady. w.
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X-Received: by 10.55.26.207 with SMTP id l76mr9789314qkh.2.1512326161203; Sun, 03 Dec 2017 10:36:01 -0800 (PST) X-Received: by 10.31.61.142 with SMTP id k136mr946365vka.5.1512326160991; Sun, 03 Dec 2017 10:36:00 -0800 (PST) Path: mbox-mo1.pugleaf.net!news-archive.icm.edu.pl!news.icm.edu.pl!news.nask.pl!news.nask.org.pl!news.unit0.net!peer03.am4!peer.am4.highwinds-media.com!peer01.iad!feed-me.highwinds-media.com!news.highwinds-media.com!g35no223170qtk.1!news-out.google.com!v55ni490qtc.0!nntp.google.com!g35no223167qtk.1!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: pl.comp.lang.c Date: Sun, 3 Dec 2017 10:36:00 -0800 (PST) In-Reply-To: <e0353a42-36b9-4951-b58b-a622691674e4@googlegroups.com> Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=2a01:112f:80d:ee00:d6be:d9ff:fe09:8928; posting-account=VFwkXwoAAADdT4-lLKRZrMYkTjizGoyn NNTP-Posting-Host: 2a01:112f:80d:ee00:d6be:d9ff:fe09:8928 References: <e0353a42-36b9-4951-b58b-a622691674e4@googlegroups.com> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <11da5655-809a-4460-bbc0-ffb367ce2733@googlegroups.com> Subject: Re: C++ i dyrektywa using From: Wojciech Muła <wojciech_mula@poczta.onet.pl> Injection-Date: Sun, 03 Dec 2017 18:36:01 +0000 X-Received-Bytes: 1964 X-Received-Body-CRC: 3445705188 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit