widelands-dev team mailing list archive

[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
> 
> 
> _______________________________________________
> Mailing list: https://launchpad.net/~widelands-dev
> Post to     : widelands-dev@xxxxxxxxxxxxxxxxxxx
> Unsubscribe : https://launchpad.net/~widelands-dev
> More help   : https://help.launchpad.net/ListHelp
> 
> 
> 
> No virus found in this message.
> Checked by AVG - www.avg.com <http://www.avg.com>
> Version: 2016.0.7227 / Virus Database: 4477/11097 - Release Date: 12/01/15
> 

-- 
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v2.0.22 (MingW32)
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=fcOW
-----END PGP PUBLIC KEY BLOCK-----