Re: Partial template class specialization?
On 3/29/2011 1:18 PM, MikeWhy wrote:
I want to override a template class method on a formal parameter. Is
this possible without redefining everything else in the class? The
alternative is a "conditional is constant" warning. For example, call
Reset() only when AutoReset is true:
template <bool AutoReset, class T>
class TimerNode {
...
void OnTimer();
void DoCall();
};
//----------------------
template <class T>
void TimerNode<true, T>::OnTimer()
{
Reset();
DoCall();
}
//----------------------
template <class T>
void TimerNode<false, T>::OnTimer()
{ DoCall();
}
Why do you think you need this dance? Is "Reset" name not available
when 'TimerNode' is instantiated with 'AutoReset==false'? If it is
available all the time, just do
template<bool AR, class T> void TimerNode<AR,T>::OnTimer()
{
if (AR) Reset();
DoCall();
}
IOW, why create a problem for yourself where there isn't one?
MSVC 2008 complains:
error C3860: template argument list following class template name must
list parameters in the order used in template parameter list
error C3855: 'CallbackTimerT<AutoReset,TickProc>': template parameter
'AutoReset' is incompatible with the declaration
error C2976: 'CallbackTimerT<AutoReset,TickProc>' : too few template
arguments
error C3860: template argument list following class template name must
list parameters in the order used in template parameter list
V
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