id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	revision
325	Avoid using INVALID for LEMON iterators and STL style iterarors	Peter Kovacs	Balazs Dezso	"INVALID is used many times in LEMON codes and it could be annoying (we have to write capital letters using the Shift key). However, it could be avoided if the iterator classes converted to `bool`, thus we could write
{{{
for(NodeIt n(g); n; ++n)
}}}
instead of
{{{
for(NodeIt n(g); n!=INVALID; ++n)
}}}

Of course, this interface would be just an alternative for the current one.

This ticket is a follow-up of #246."	enhancement	closed	major	LEMON 1.4 release	core	hg main	done