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* [Bug c++/61507] New: GCC does not compile function with parameter pack.
@ 2014-06-14  1:38 congh at google dot com
  2014-06-14 11:59 ` [Bug c++/61507] " redi at gcc dot gnu.org
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: congh at google dot com @ 2014-06-14  1:38 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61507

            Bug ID: 61507
           Summary: GCC does not compile function with parameter pack.
           Product: gcc
           Version: 4.10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: congh at google dot com

GCC fails to compile the following code:



struct A {
  void foo(const int &);
  void foo(float);
};

template <typename... Args>
void bar(void (A::*memfun)(Args...), Args... args);

void go(const int& i) {
  bar<const int &>(&A::foo, i);
}




The error message is shown below:



t.C:10:30: error: no matching function for call to ‘bar(<unresolved overloaded
function type>, const int&)’
   bar<const int &>(&A::foo, i);
                              ^
t.C:7:6: note: candidate: template<class ... Args> void bar(void (A::*)(Args
...), Args ...)
 void bar(void (A::*memfun)(Args...), Args... args);
      ^
t.C:7:6: note:   template argument deduction/substitution failed:
t.C:10:30: note:   inconsistent parameter pack deduction with ‘const int&’ and
‘int’
   bar<const int &>(&A::foo, i);



As the type is explicitly specified, why GCC would like to "deduce" it?
>From gcc-bugs-return-454175-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Jun 14 06:56:31 2014
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From: "charlet at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ada/61505] [4.10 Regression] bootstrap broken by ada/gnat_rm.texi after r211448
Date: Sat, 14 Jun 2014 06:56:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?ida505

--- Comment #4 from Arnaud Charlet <charlet at gcc dot gnu.org> ---
Author: charlet
Date: Sat Jun 14 06:55:49 2014
New Revision: 211665

URL: https://gcc.gnu.org/viewcvs?rev!1665&root=gcc&view=rev
Log:
        PR ada/61505
        * gnat_rm.texi: Attempt to fix error with makeinfo 5.1

Modified:
    trunk/gcc/ada/ChangeLog
    trunk/gcc/ada/gnat_rm.texi


^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2014-06-19  9:35 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-06-14  1:38 [Bug c++/61507] New: GCC does not compile function with parameter pack congh at google dot com
2014-06-14 11:59 ` [Bug c++/61507] " redi at gcc dot gnu.org
2014-06-18 22:14 ` jason at gcc dot gnu.org
2014-06-19  9:35 ` jason at gcc dot gnu.org

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