From 2288358247233595600 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f78e5,857007135a18bc05,start X-Google-Attributes: gidf78e5,public From: m-morita@trc.rwcp.or.jp (Masao Morita) Subject: static_cast to void Date: 1999/09/09 Message-ID: #1/1 X-Deja-AN: 523083135 Approved: Fergus Henderson X-Original-Date: 09 Sep 1999 05:11:15 GMT X-Complaints-To: news@news.unimelb.edu.au X-Trace: ariel.ucs.unimelb.edu.au 936906301 4032 128.250.37.153 (9 Sep 1999 19:45:01 GMT) Organization: Tsukuba Research Center, Real World Computing Partnership, JAPAN X-Auth: PGPMoose V1.1 PGP comp.std.c++ iQBFAgUAN9gOM+EDnX0m9pzZAQG7awF+Nbd8yq4E3pWaoGkBzuRWjBzK0KhDFo4F Wsxro4/60NtNNJVd5s2hbMsMzCrlrqir =Lcq2 NNTP-Posting-Date: 9 Sep 1999 19:45:01 GMT Newsgroups: comp.std.c++ Hi, I have a question about static_cast expression. ISO/IEC 14882:1998(E) 5.2.9 static_cast paragraph 4 4 Any expression can be explicitly converted to type "cv void." The expression value is discarded. [Note: however, if the value is in a temporary variable, the destructor for that variable is not executed until the usual time, and the value of the variable is preserved for the purpose of executing the destructor. ] I can not understand this paragraph. Say. static_cast(Any_Expression); This expression looks like meaningless. Probably, the content of Any_expression would make sence in any case. what sort of case? If possible, please show me examples. Thank you in advance. M. Morita --- [ 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 ]