From -5825522570252044481 X-Google-Language: ENGLISH,ASCII X-Google-Thread: f78e5,c2bd1286392a0f79 X-Google-Attributes: gidf78e5,public From: Robert Klemme Subject: Re: std::vector construction question Date: 2000/03/01 Message-ID: <38BBCCDE.C337B832@gmx.net>#1/1 X-Deja-AN: 591319958 Approved: Fergus Henderson , moderator of comp.std.c++ References: X-Accept-Language: de X-Authentication-Warning: mulga.cs.mu.OZ.AU: fjh set sender to devnull@stump.algebra.com using -f X-Complaints-To: abuse@demon.net X-Mail2News-Path: news.demon.net!mulga.cs.mu.oz.au X-Trace: mail2news.demon.co.uk 951835775 mail2news:13096 mail2news mail2news.demon.co.uk Organization: myview technologies X-Robomod: STUMP, ichudov@algebra.com (Igor Chudov) Reply-To: robert.klemme@myview.de NNTP-Posting-Date: 29 Feb 2000 13:42:58 GMT X-MIME-Autoconverted: from 8bit to quoted-printable by mumnunah.cs.mu.OZ.AU id AAA20542 Newsgroups: comp.std.c++ hi, your main problem seems to be, that the iterator of a map does not yield the elment on deref. instead you would have to use somthing like iter->first (for the key) or iter->second. since your compiler cannot read your mind, it is not possible the way you suggested. you have to copy them manually. Gabor Greif schrieb: > > I have the problem of moving data from a std::map to a std::vector to be > able to sort it. > > #include > #include > #include > using namespace std; > > ... > > void processmap(const map& table) > { > vector v(table.begin(), table.end()); > sort(v.begin(), v.end(), SomePredicate); > } > > I understand that the element type for both containers (pair int>) does not have a compiler generated assignment operator. afaik this is wrong: there is an assignment for pair for any A and B that support operator=. > The reason why I am posting is that of two compilers we use here one > accepted the above example, the second choked on the vector constructor > right from the start. A rewrite using push_back revealed the absence of the > assignment operator. strange... robert -- Robert Klemme Software Engineer ------------------------------------------------------------- myview technologies GmbH & Co. KG Riemekestra�e 160 ~ D-33106 Paderborn ~ Germany E-Mail: mailto:robert.klemme@myview.de Telefon: +49/5251/69090-321 ~ Fax: +49/5251/69090-399 ------------------------------------------------------------- --- [ comp.std.c++ is moderated. To submit articles, try just posting with ] [ your news-reader. If that fails, use mailto:std-c++@ncar.ucar.edu ] [ --- Please see the FAQ before posting. --- ] [ FAQ: http://reality.sgi.com/austern_mti/std-c++/faq.html ]