[Lemon-user] Create and initialize a vector of NodeMaps (or ArcMaps)

[David Franz Koza]

Hi Marco,

of course, not the first time I forget... thanks!

Best regards,
David

From: Lemon-user [mailto:lemon-user-bounces at lemon.cs.elte.hu] On Behalf Of Marco Blanco
Sent: 24. januar 2017 11:49
To: lemon-user at lemon.cs.elte.hu
Subject: Re: [Lemon-user] Create and initialize a vector of NodeMaps (or ArcMaps)

Dear David,

std::vector requires its elements to be copyable, like all STL containers. As the error message says, NodeMap doesn't have a copy constructor, so you cannot store them in a vector.

I don't know if there is a built-in alternative in Lemon, but what you can always do in these cases is to use a vector of pointers to NodeMap.

Kind regards,
Marco
Am 24.01.2017 um 11:16 schrieb David Franz Koza:
Dear all,

I would like to create a vector of NodeMaps. The size of the vector is not a constant, hence I tried the following to initialize the vector:

GraphClass::GraphClass(unsigned int num_maps) :
vec_of_maps(num_maps, lemon::SmartDigraph::NodeMap<bool>(g))
{
}

with

class GraphClass {
public:
            GraphClass(unsigned int num_maps);
            lemon::SmartDigraph g;
            std::vector<lemon::SmartDigraph::NodeMap<bool>> vec_of_maps;
};


However, I get the following MSVC error:

Microsoft Visual Studio 14.0\VC\include\xmemory0(737): error C2280: 'lemon::DigraphExtender<lemon::SmartDigraphBase>::NodeMap<bool>::NodeMap(const lemon::DigraphExtender<lemon::SmartDigraphBase>::NodeMap<bool> &)': attempting to reference a deleted function

Any suggestions on how I can initialize a vector of lemon::SmartDigraph::NodeMap<bool>(g) ?

Thanks!




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