[Boost-users] graph library : isomorphism.hpp vertex invariant parameter

From: Patrick A. La Fratta (plafratt_at_[hidden])
Date: 2007-06-12 10:59:33

Setting the "vertex_invariant" parameter to the isomorphism function does
not seem to have any affect on the behavior of the function. In
isomorphism.hpp, it appears that the function "isomorphism_impl" is supposed
to read the parameter at the return statement:

return isomorphism(G1, G2, f,
choose_param(get_param(params, vertex_invariant1_t()), invariant1),
choose_param(get_param(params, vertex_invariant2_t()), invariant2),
choose_param(get_param(params, vertex_max_invariant_t()), ( invariant2.max
)()),
index_map1, index_map2
);

If "vertex_invariant1_t()" and "vertex_invariant2_t()" are both changed to
"vertex_invariant_t()", the setting of the parameter then seems to have an
affect. Has anyone been able to successfully set the vertex_invariant
parameter using the named parameter version of the isomorphism function? I
have had to resort to calling one of the internal isomorphism functions to
set this parameter.

any help is appreciated,
Patrick