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* Re: c++/7965: Mistaken attempt to call a class template default constructor
@ 2003-01-28 17:21 bangerth
0 siblings, 0 replies; 3+ messages in thread
From: bangerth @ 2003-01-28 17:21 UTC (permalink / raw)
To: gcc-bugs, gcc-prs, nmusatti, nobody
Synopsis: Mistaken attempt to call a class template default constructor
State-Changed-From-To: analyzed->closed
State-Changed-By: bangerth
State-Changed-When: Tue Jan 28 17:21:28 2003
State-Changed-Why:
Fixed for 3.2.2, 3.3 and 3.4
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7965
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: c++/7965: Mistaken attempt to call a class template default constructor
@ 2002-09-28 7:16 lerdsuwa
0 siblings, 0 replies; 3+ messages in thread
From: lerdsuwa @ 2002-09-28 7:16 UTC (permalink / raw)
To: gcc-bugs, gcc-prs, nmusatti, nobody
Synopsis: Mistaken attempt to call a class template default constructor
State-Changed-From-To: open->analyzed
State-Changed-By: lerdsuwa
State-Changed-When: Sat Sep 28 07:16:31 2002
State-Changed-Why:
Confirmed.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7965
^ permalink raw reply [flat|nested] 3+ messages in thread
* c++/7965: Mistaken attempt to call a class template default constructor
@ 2002-09-18 0:16 nmusatti
0 siblings, 0 replies; 3+ messages in thread
From: nmusatti @ 2002-09-18 0:16 UTC (permalink / raw)
To: gcc-gnats
>Number: 7965
>Category: c++
>Synopsis: Mistaken attempt to call a class template default constructor
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: rejects-legal
>Submitter-Id: net
>Arrival-Date: Wed Sep 18 00:16:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Nicola Musatti
>Release: gcc version 3.2 (mingw special 20020817-1)
>Organization:
>Environment:
Windows 2000
>Description:
Compilation of the enclosed source results in the following error messages:
ConcreteClass.cpp: In function `int main()':
ConcreteClass.cpp:34: no matching function for call to `DirectAttribute<A,
double>::DirectAttribute()'
ConcreteClass.cpp:4: candidates are: DirectAttribute<A,
double>::DirectAttribute(const DirectAttribute<A, double>&)
ConcreteClass.cpp:8: DirectAttribute<C, T>::DirectAttribute(T
C::*) [with C = A, T = double]
ConcreteClass.cpp:34: warning: unused variable `ConcreteClass<A> metaA'
Apparently an attempt is made to generate a (spurious) call to DirectAttribute's default constructor. The problem disappears if DirectAttribute's private member is removed (but not the constructor's argument).
>How-To-Repeat:
Compile the following code:
template <class C, typename T>
class DirectAttribute
{
public:
typedef T C::* MemberType;
DirectAttribute(MemberType m) : member(m) {}
private:
MemberType member;
};
struct A
{
double f;
};
template <class C> class ConcreteClass
{
};
template <> class ConcreteClass<A>
{
public:
ConcreteClass() : f1(&A::f) {}
private:
DirectAttribute<A,double> f1;
};
int main()
{
ConcreteClass<A> metaA;
}
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
^ permalink raw reply [flat|nested] 3+ messages in thread
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2003-01-28 17:21 c++/7965: Mistaken attempt to call a class template default constructor bangerth
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2002-09-28 7:16 lerdsuwa
2002-09-18 0:16 nmusatti
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