widelands-dev team mailing list archive

[Tibor Bamhor <tiborb95@xxxxxxxxx>]

I just gave up on this. I used std::map - it works so I will test it for
some time....

Thanks anyway

2015-12-01 16:05 GMT+01:00 Fòram na Gàidhlig <fios@xxxxxxxxxxxxxxxxxxx>:

> Do you have a constructor to create a request_dist from another
> request_dist? That solved by problem once for something like this.
>
> I'm not sure if you need the = comparator, but you can test that easily
> once you have gotten rid of the compiler error.
>
>
>
> Sgrìobh Tibor Bamhor na leanas 01/12/2015 aig 12:50:
> > Hi,
> >
> > I spent few hours today to code priority queue for economy. The queue
> > should contains structs of distance,&supply. Distance is distance from
> > request to supply and this has to be a sorting key. I tried multiple
> > things but failed to make it work. By now I have:
> >
> > ---------------------------------------------
> > struct request_dist {
> > request_dist(uint32_t d, Supply& s) : dist(d), supply(s) { }
> > struct compare {
> > bool operator() (const request_dist & a, const request_dist & b) const {
> > return a.dist < b.dist;
> > }
> >
> > };
> >
> >        // is following needed?
> > void operator=(const request_dist& other){
> > dist = other.dist;
> > supply = other.supply;
> > }
> > uint32_t dist;
> > Supply& supply;
> > };
> >
> >
> >
> > using AvailableSupplies = std::priority_queue<request_dist,
> > std::vector<request_dist>, request_dist::compare>;
> > AvailableSupplies available_supplies;
> >
> > ---------------------------------------------
> >
> > Currently I am getting this:
> >
> > /var/widelands/request_supply_opt/src/economy/economy.h:253:10: error:
> > invalid use of incomplete type 'struct Widelands::Supply'
> >    supply = other.supply;
> >           ^
> > In file included from
> > /var/widelands/request_supply_opt/src/economy/economy.h:34:0,
> >                  from
> > /var/widelands/request_supply_opt/src/wui/actionconfirm.cc:25:
> > /var/widelands/request_supply_opt/src/economy/supply_list.h:30:8: error:
> > forward declaration of 'struct Widelands::Supply'
> >  struct Supply;
> >
> >
> > Can you advice me? This is far beyond my coding skills...
> >
> > But on the other hand this is not critical for my life nor widelands, I
> > just have some improvement in my head...
> >
> > Thanks
> >
> > Tibor
> >
> >
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