Re: [boost] Re: Re: [optional] update
by Mat Marcus other posts by this author
Sep 12 2003 1:52AM messages near this date
Re: [boost] Re: Re: [optional] update
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Re: [boost] Re: Re: [optional] update
SOURCE --On Thursday, September 11, 2003 11:31 PM +0100 Hamish Mackenzie
<hamish@[...].uk> wrote:
> Is there something similar for using with template classes?
> Something like
>
> template< typename T >
> class my_class : enable_if< is_same< T, x >::value >
> {
> };
I think the usual idiom is:
template <typename T, typename Enable = void>
class my_class; //general case
template <typename T>
class A<T, typename enable_if<is_same<T, x> ::value>::type> //special
case
{
};
- Mat
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