Re: [Boost-users] [Boost.graph] compilation error for dijkstra_shortest_paths

Douglas Gregor writes:

On Mon, 2007-05-28 at 12:37 +0000, Nicolas Ray wrote:

...

Hello all,

I have developed an application using the dijkstra_shortest_paths function of the Graph library of version 1.31 of Boost. When upgrading to Boost version 1.34, I have the following compilation error under Borland C++ Builder 6:

[C++ Error] relaxed_heap.hpp(52): E2247'relaxed_heap,vec_adj_list_vertex_id_map>::largest_key' is not accessible

Oops, this looks like a bug in the relaxed_heap code. Please add

friend struct group;

at line 88 of relaxed_heap.hpp (right after the definition of the "group" struct), which should fix the problem.

- Doug

Doug, thanks for your answer. The compilation error disappeared after the change you suggested, but another one appeared further down in relaxed_heap.hpp. The compilation error is now: [C++ Error] relaxed_heap.hpp(221): E2094 'operator&&' not implemented in type 'optional<unsigned int>' for arguments of type 'bool' and is related to the line 218 (in the original file): if (groups[i] && (!x->value || compare(*groups[i], *x->value))) { nicolas