On Tue, Nov 8, 2011 at 11:21 PM, Lorenzo Caminiti <lorcaminiti@gmail.com> wrote:
On Tue, Nov 8, 2011 at 9:29 AM, Daniel Wallin <daniel@boostpro.com> wrote:
On Sun, Nov 6, 2011 at 8:12 PM, Lorenzo Caminiti <lorcaminiti@gmail.com> wrote: I see. Yes, this worked and I have listed below my original DFS example with this change which now compiles. Thank you very much!
Great!
Note that you need can't use:
(vertex_descriptor<tag::graph::_>)
because the library doesn't properly treat the predicate as a metafunction in all the places that it should.
Can this be fixed?
Yes, I commited a fix to trunk in r75415.
A far as I can tell, there are two major issues here that should be fixed in Boost.Parameter: 1) The docs don't mention tag::xyz::_ at all, they refer to xyx_type which only works within the function definition and not in the function declaration.
Yes, clearly a documentation bug.
Yes, the docs don't mention how to use tag::xyz::_ at all (I even started to look at the source code and I understand some metaprogramming but still I had no clue what was going on). Could the doc examples also be tested by the regression tests to make sure they compile? (I will send another email with attached the source code of all the doc example that I reworked so they compile.)
Yep, updated the docs to test this in r75417. -- Daniel Wallin BoostPro Computing http://www.boostpro.com