Re: [Boost-users] Serializing Boost.Tuple

From: Sohail Somani (sohail_at_[hidden])
Date: 2008-03-27 15:37:23

On Thu, 27 Mar 2008 16:32:25 -0300, Felipe Magno de Almeida wrote:

>>  > Anyway, if there was an is_tuple<T> metafunction, there would be a
>>  > more elegant way to do it:
>>
>>  Hmm, no I lied. You couldn't do it this way because then the overload
>>  would be ambiguous when it matched. I think...
> 
> Ambigous with what?

Ambiguous with the other boost::serialization::serialize function. I was 
thinking of:

template<typename Archive, typename TupleType>
boost::enable_if<is_tuple<TupleType>::value,void>::type
serialize(Archive & ar, TupleType & t, const unsigned int);

But the function that gets called when anything is serialized is:

template<typename Archive, typename T>
void serialize(Archive & ar, T & t, const unsigned int);

So when is_tuple<TupleType>::value is true, then there are two functions 
which match the required signature => ambiguous. Atleast in my head 
anyway.

Anyway, the Boost.PP version is fine :-)

-- 
Sohail Somani
http://uint32t.blogspot.com