a lot of warning for g++ 8.3.0

graph-tool
1

I am build graphs-tools 2.31 using g++ 8.3.0. It floods me with warnings like
the following:

/users/lisergey/include/boost/bind.hpp:41:1: note: #pragma message: The
practice of declaring the Bind placeholders (_1, _2, ...) in the global
namespace is deprecated. Please use <boost/bind/bind.hpp> + using namespace
boost::placeholders, or define BOOST_BIND_GLOBAL_PLACEHOLDERS to retain the
current behavior.
)
^

/users/lisergey/include/boost/python/extract.hpp:185:11: warning:
'*((void*)&<anonymous> +24)' may be used uninitialized in this function
[-Wmaybe-uninitialized]
           );
           ^
/users/lisergey/include/boost/python/extract.hpp: In constructor
'WrappedState<Graph, State>::WrappedState(Graph&, WrappedState<Graph,

::smap_t, WrappedState<Graph, State>::smap_t, boost::python::dict,

rng_t&) [with Graph = boost::filt_graph<boost::adj_list&lt;long unsigned

,

graph_tool::detail::MaskFilter<boost::unchecked_vector_property_map&lt;unsigned
char, boost::adj_edge_index_property_map&lt;long unsigned int> > >,
graph_tool::detail::MaskFilter<boost::unchecked_vector_property_map&lt;unsigned
char, boost::typed_identity_property_map&lt;long unsigned int> > > >; State
= graph_tool::majority_voter_state]':

2

These warnings come from boost, not graph-tool.

Best,
Tiago

3

These warnings come from boost, not graph-tool.

Thank you. I think it is more friendly to the users not to hard code -Wall
-Wextra.

configure.ac:
dnl turn on warnings
[CXXFLAGS="-Wall -Wextra -ftemplate-backtrace-limit=0 ${CXXFLAGS}"]

4

Why?

You can override this with -Wno-all -Wno-extra etc.

Best,
Tiago

5

Why?

Because to everybody trained to ignore them.

6

Because to everybody trained to ignore them.

Sorry. I mean "because not everyone is trained to ignore them". Thank you
anyway.

7

You're not supposed to ignore them.

In my setup, and in all the environments where I build graph-tool, I do
not see any warnings.

As I already told you two times before, these warnings come from outside
of graph-tool. Fix your environment if you do not want to see them, or
disable them. Just don't shoot the messenger.

Best,
Tiago