From -114713102986984684 X-Google-Thread: f78e5,e1d72e3830635ee,start X-Google-Attributes: gidf78e5,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news1.google.com!newsfeed.gamma.ru!Gamma.RU!npeer.de.kpn-eurorings.net!newsfeed00.sul.t-online.de!t-online.de!peer-uk.news.demon.net!kibo.news.demon.net!mutlu.news.demon.net!news.demon.co.uk!demon!stump.algebra.com!devnull From: no.spam@no.spam.com (Maciej Sobczak) Newsgroups: comp.std.c++ Subject: std::tolower - which one should be visible? Date: Fri, 22 Jul 2005 15:42:30 GMT Organization: CERN - European Laboratory for Particle Physics Lines: 37 Sender: mail2news@demon.net Approved: fjh@cs.mu.oz.au (Fergus Henderson , moderator of comp.std.c++) Message-ID: NNTP-Posting-Host: news.news.demon.net Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Trace: news.demon.co.uk 1122046959 14667 158.152.254.254 (22 Jul 2005 15:42:39 GMT) X-Complaints-To: abuse@demon.net NNTP-Posting-Date: Fri, 22 Jul 2005 15:42:39 +0000 (UTC) X-Robomod: STUMP, ichudov@algebra.com (Igor Chudov) X-User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.8) Gecko/20050524 Red Hat/1.7.8-1.1.3.1 X-Accept-Language: en-us, en X-Virus-Scanned: amavisd-new at cs.mu.OZ.AU X-Received: (from fjh@localhost) by mulga.cs.mu.OZ.AU (8.12.10+Sun/8.12.9/Submit) id j6MFgUxD024535; Sat, 23 Jul 2005 01:42:30 +1000 (EST) X-Path: comp-std-cpp-robomod!not-for-mail X-Delivered-To: std-c++@ucar.edu X-Authentication-Warning: mulga.cs.mu.OZ.AU: fjh set sender to devnull@stump.algebra.com using -f X-Newsgroups: comp.std.c++ Xref: g2news1.google.com comp.std.c++:1458 Hello, #include #include #include // later: string a, b; // ... transform(a.begin(), a.end(), b.begin(), std::tolower); Taking into account what was #included, the std::tolower should name a single-parameter function from the standard C library, so that the above code should work. On the other hand, the header is allowed to be *implicitly* included (for example by ), meaning that std::tolower could possibly name also the two-parameter version that is locale-aware, rendering the above ambiguous and ill-formed. Is this considered to be a problem? It can be solved by casting to the requested function type, but the issue is whether the above code is *guaranteed* to work or not. -- Maciej Sobczak : http://www.msobczak.com/ Programming : http://www.msobczak.com/prog/ --- [ 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://www.jamesd.demon.co.uk/csc/faq.html ]