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List:       gcc-bugs
Subject:    Non-inline constructor definition of internal template class in another template class, fails.
From:       Carlo Wood <carlo () runaway ! xs4all ! nl>
Date:       1999-10-05 14:33:08
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Hi,

I suppose this is a bug?

~/c++/tests>g++ -c specialization.cc
specialization.cc:12: new declaration `A<T>::I<U>::I()'
specialization.cc:6: ambiguates old declaration `A<T>::I<U>::I()'

(I didn't even get to the specialization yet)

specialization.cc:
-----------------------------
template<class T>
class A {
  template<class U>
  class I {
  public:
    I(void);		// specialization.cc:6
  };
};

template<class T>
template<class U>
A<T>::I<U>::I(void) { }	// specialization.cc:12
------------------------------

Note that this works fine when:
* you replace `I(void)' by `x(void)', or
* when class A isn't a template, or
* when you put the definition of I(void) ({ }) inline in its class.

Again: egcs-1.1.2 release.
Please let me know if it is fixed in a later version; I will upgrade
this time :/ (if only to stop bugging you with old bugs).

-- 
 Carlo Wood  <carlo@runaway.xs4all.nl>

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