Vladimir Prus wrote:
Daniel Wallin wrote:
template<class G, class A0, .., class AN> typename enable_if_graph< G , typename graph_traits<G>::edge_descriptor
::type add_edge( typename graph_traits<G>::vertex_descriptor u , typename graph_traits<G>::vertex_descriptor v , A0 const& a0 , ... , AN const& an , G& g) { typename keywords_for_graph<G>::type kw; ^^^^^^^^ ^^ return add_edge_impl(u, v, g, kw(a0, ..., an));
Should there be kw()(a0...) ? It seems the syntax that works for me.
No, kw isn't a type here. [snip]
I wonder what's the reason to require conversion/construction of keywords<>? Couldn't (color = 10, name = "foo") already create a type with proper operator[])?
Yes, it could. The point of keywords<> is to enable positional parameters as well as named (and also the SFINAE stuff). Anyway, I checked in some changes to the sandbox that enables list creation with operator,. Could you try that version out? -- Daniel Wallin