Re: [boost] is_virtual_base_of ?

Subject: Re: [boost] is_virtual_base_of ?
From: Robert Ramey (ramey_at_[hidden])
Date: 2009-03-11 13:14:39

Robert Ramey wrote:

I'm still having some problems with this.  Some compilers are flaging as an 
error
the case where B doesn't have a default constructor.

Robert Ramey

>> template< typename D, typename B >
>> struct is_virtual_base_of
>> {
>>   struct X : D, virtual B {};
>>   enum { value = sizeof(X)==sizeof(D) };
>> };
>>
>> template< typename T >
>> struct is_virtual_base_of< T, T >
>> {
>>   enum { value = false };
>> };
>>