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From: "jakub at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/39875] [4.5 regression] Wrong "value computed is not used" warning Date: Sun, 26 Apr 2009 19:23:00 -0000 [thread overview] Message-ID: <20090426192328.5584.qmail@sourceware.org> (raw) In-Reply-To: <bug-39875-102@http.gcc.gnu.org/bugzilla/> ------- Comment #2 from jakub at gcc dot gnu dot org 2009-04-26 19:23 ------- No need for templates: void foo () { int *i; (void) *i; // { dg-bogus "value computed is not used" } } This was caused by http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=146132 (PR39551). convert_to_void doesn't know if the conversion to void was caused by explicit cast (in this testcase, no warning should be emitted) or implicit (when it should be emitted). -- jakub at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |lcwu at gcc dot gnu dot org Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2009-04-26 19:23:28 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39875
next prev parent reply other threads:[~2009-04-26 19:23 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2009-04-23 19:59 [Bug c++/39875] New: " bangerth at gmail dot com 2009-04-24 9:25 ` [Bug c++/39875] " rguenth at gcc dot gnu dot org 2009-04-26 17:11 ` bangerth at gmail dot com 2009-04-26 19:23 ` jakub at gcc dot gnu dot org [this message] 2009-04-26 19:36 ` jakub at gcc dot gnu dot org 2009-04-27 5:54 ` jakub at gcc dot gnu dot org 2009-04-27 5:56 ` jakub at gcc dot gnu dot org
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