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From: "bangerth at dealii dot org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/11582] New: Odd error message with dynamically sized template arg printing Date: Fri, 18 Jul 2003 22:25:00 -0000 [thread overview] Message-ID: <20030718222516.11582.bangerth@dealii.org> (raw) PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11582 Summary: Odd error message with dynamically sized template arg printing Product: gcc Version: unknown Status: UNCONFIRMED Keywords: diagnostic Severity: normal Priority: P2 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: bangerth at dealii dot org CC: gcc-bugs at gcc dot gnu dot org,gdr at gcc dot gnu dot org Extracted from PR 6785: I guess this is totally irrelevant (because the code is invalid), but nevertheless: for this code ------------------------------------------------- template <typename T> int size(); template <int N> void f(int (&)[N]); void g() { int buf[size<int>()]; f( buf ) ; } ------------------------------------------------- we get the following error: tmp/gg> ../build-gcc/gcc-install/bin/c++ -c x.cc x.cc: In function `void g()': x.cc:6: error: no matching function for call to `f(int[size() [with T = int]()])' Note how we try to write the size of the array as an expression, which involves the call to a templated function, and where it tries to place the template arg when printing it. It is a little confusing to see the [with T=int] here, since T is nowhere referenced before or after, and the placing is odd. And then there is the duplicate () after the templates are printed. This can be seen here too: ---------------------------------- int size(); template <int N> void f(int (&)[N]); void g() { int buf[size()]; f( buf ) ; } ------------------------------------- tmp/gg> ../build-gcc/gcc-install/bin/c++ -c x.cc x.cc: In function `void g()': x.cc:6: error: no matching function for call to `f(int[size()()])' I think that looks just cute ;-) W.
next reply other threads:[~2003-07-18 22:25 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2003-07-18 22:25 bangerth at dealii dot org [this message] 2003-07-18 22:52 ` [Bug c++/11582] " gdr at integrable-solutions dot net 2003-07-19 2:31 ` pinskia at physics dot uc dot edu 2003-07-19 3:00 ` bangerth at dealii dot org 2003-08-17 12:43 ` pinskia at gcc dot gnu dot org 2003-08-23 0:51 ` dhazeghi at yahoo dot com 2003-11-23 7:04 ` pinskia at gcc dot gnu dot org
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