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XmlIO - New function proposal [message #8602]

Tue, 20 March 2007 23:22

victorb
Messages: 78
Registered: December 2005
Location: Nice, France

Member

My application is using XML to store/retrieve data. Many elements are using the same default value. In this case I don't want to store the attribute value in the XML but I want it restored to a default value (instead of Null) when reading the configuration back. I have added this new function to XmlIO class

	template <class T> XmlIO Attr(const char *id, T& var, T def) {
		if(IsLoading()) {
			XmlAttrLoad(var, node.Attr(id));
			var = Nvl(var, def);
		} else if (var != def) 
			node.SetAttr(id, XmlAttrStore(var));		
		return *this;
	}

Do you think it might be useful to have this in standard Upp ?

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