id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	revision
633	Fixes fox gcc 9	Alpar Juttner	Alpar Juttner	"The gcc 9.x report tons of warnings like 

{{{
/home/alpar/projects/LEMON/hg/comptest-main/lemon/concepts/graph_components.h:527:15: error: implicitly-declared ‘lemon::concepts::Digraph::Node& lemon::concepts::Digraph::Node::operator=(const lemon::concepts::Digraph::Node&)’ is deprecated [-Werror=deprecated-copy]
  527 |           node=INVALID;
      |           ~~~~^~~~~~~~
In file included from /home/alpar/projects/LEMON/hg/comptest-main/test/max_flow_test.cc:25:
/home/alpar/projects/LEMON/hg/comptest-main/lemon/concepts/digraph.h:78:9: note: because ‘lemon::concepts::Digraph::Node’ has user-provided ‘lemon::concepts::Digraph::Node::Node(const lemon::concepts::Digraph::Node&)’
   78 |         Node(const Node&) { }
      |         ^~~~
}}}

The patch attached makes an attempt to fix it.
Some of the changes, and event some of the related part of the current code is strange even for myself.

So this patch definitely needs a thorough review."	defect	new	blocker	LEMON 1.4 release	core	hg main