CODEWITHSUNDEEP
c++visual-studio-2010templates
relaxxx
relaxxx

Reputation: 7834

weird "unable to match function definition"

I have 

class ObjectController
{
public:
...
    template<template<class> class Action, class T>
    Action<T> * createAction(typename Action<T>::CommandFunction cf, T * t)
    {
        return new Action<T>(cf, t);
    }
...
};

and everything works just fine... But I am used to have only declarations in my classes and definitions in other file... (*.inl for templates)... But when I move this code outside the class ObjectController like this:

class ObjectController
{
public:
...
    template<template<class> class Action, class T>
    Action<T> * createAction(typename Action<T>::CommandFunction cf, T * t);
...
};

template<template<class> class Action, class T>
Action<T> * ObjectController::createAction(typename Action<T>::CommandFunction cf, T * t)
{
    return new Action<T>(cf, t);
}

I get: 

unable to match function definition to an existing declaration definition
'Action<T> *gear::core::ObjectController::createAction(Action<T>::CommandFunction,T *)'
existing declarations
'Action<T> *gear::core::ObjectController::createAction(Action<T>::CommandFunction,T *)'

How can I solve it?

edit when I take exact code from KennyTM (see comments) and paste it to my VS2010 I get the same error... Can somebody confirm it?

Upvotes: 0

Views: 378

Answers (2)

relaxxx
relaxxx

Reputation: 7834

It is a bug. I have submitted it to Microsoft

https://connect.microsoft.com/VisualStudio/feedback/details/724362/unable-to-match-function-definition

The fix should show up in the next release of Visual C++.

Upvotes: 0

Drew Dormann
Drew Dormann

Reputation: 63883

There is a bug in Visual Studio 2005 that prevents certain "outlined" template functions from compiling correctly.

There is a hotfix available here. http://support.microsoft.com/kb/930198

Upvotes: 1

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