Re: [Boost-users] Using metric_tsp_approx with bundled properties

Subject: Re: [Boost-users] Using metric_tsp_approx with bundled properties
From: Jeremiah Willcock (jewillco_at_[hidden])
Date: 2014-04-14 10:13:34

> From: Alexis Praga <alexispraga_at_[hidden]>
>To: boost-users_at_[hidden] 
>Sent: Sunday, April 13, 2014 3:02 PM
>Subject: [Boost-users] Using metric_tsp_approx with bundled properties
> 
>
>Hi,
>
>I am trying to use metric_tsp_approx on a graph defined as :
>
>typedef adjacency_list<vecS, vecS, undirectedS, City, Road> Graph;
>
>City contains the vertex id and Road the edge weight.
>After reading the documentation, I arrived to :
>
>  metric_tsp_approx(g_init, 
>      weight_map(get(&Road::length, g_init)).
>      vertex_index_map(get(&City::id, g_init)),
>      make_tsp_tour_visitor(back_inserter(c)));

After your first named argument, you need to use named arguments for the rest of the argument list:

metric_tsp_approx(g_init,
    weight_map(...).vertex_index_map(...).visitor(...));

Fixing that might fix your compilation errors.

-- Jeremiah Willcock