Hi,
How can I read in a from a stream when I
don’t know the exact type I will be getting? All objects I receive will
derive from the same base class, but I won’t know when I receive the stream
what the derived type will be and therefore I can’t create it in advance (like
in the docs).
class base
{
…
}
class derived1 : public
base
{
…
}
class derived2 : public
base
{
…
}
int main()
{
// Get a stream from
somewhere
boost::archive::binary_iarchive ia( instream );
base
b0;
derived1
d1;
derived2
d2;
is >> // derived1
or derived2???
}
Ryan
Fowler
Software
Engineer
Thomson
Reuters
Phone: +442075427063
ryan.fowler@thomsonreuters.com
thomsonreuters.com