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Subject: [Boost-users] [serialization] compile-time detection of whether serialization is implemented for a class
From: Nelson, Erik - 2 (erik.l.nelson_at_[hidden])
Date: 2012-02-16 09:45:58

I'm using the Serialization library and am trying to find a way to detect at compile-time whether or not serialization is implemented for a given type. For example, if I have

#include "boost/archive/binary_oarchive.hpp"
#include <strstream>

struct A{};

void function()
   const A a;
   std::strstream s;
   boost::archive::binary_oarchive oa(s);
   oa << a;

I get an error (as expected) along the lines of

C:\work\boost\boost/serialization/access.hpp(118): error C2039: 'serialize' : is not a member of 'A'

What I'd like is a compile-time way of detecting that 'A' is not serializable, maybe Boost Type Traits-style, something like

is_serializable<A>::value or is_serializable<binary_oarchive, A>::value that can detect whether or not the object has serialization available.

If it could work for testing pointer serialization as well (is_serializable<A*>::value or is_ptr_serializable<A>::value) that would be doubly super.



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