[xml-cppdom-devel] Attribute c'tor template woes

[Carsten N. <car...@gm...>]

	Hello,

Attribute has (among others) the following c'tor:

template <class T>
Attribute(const T& val);

and an output operator:

std::ostream& operator<<(std::ostream& os, const Attribute& att);

together these two constructs will grab any type that does not have a 
operator<< overload of its own and turn it into an infinite recursion at 
runtime (because the above c'tor uses setValue<T>(val) which uses a 
std::ostringstream to convert val into a string representation.
One possible solution is to make the c'tor template explicit - this has 
the downside that the following needs to be adjusted though:

element->setAttribute("att1", 1);
element->setAttribute("att2", "something");

to:

element->setAttribute("att1", Attribute(1));
element->setAttribute("att2", Attribute("something"));

One way to retain the convenience would be to introduce:

template <class T>
Element::setAttribute(const std::string& attName, const T& attVal)
{
     setAttribute(attName, Attribute(attVal));
}

Comments? I can create a patch along these lines if desired.

	Cheers,
		Carsten