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- /* Copyright 2016-2017 Joaquin M Lopez Munoz.
- * Distributed under the Boost Software License, Version 1.0.
- * (See accompanying file LICENSE_1_0.txt or copy at
- * http://www.boost.org/LICENSE_1_0.txt)
- *
- * See http://www.boost.org/libs/poly_collection for library home page.
- */
- /* Boost.PolyCollection exceptions */
- #include <algorithm>
- #include <array>
- #include <boost/poly_collection/base_collection.hpp>
- #include <random>
- #include "rolegame.hpp"
- int main()
- {
- boost::base_collection<sprite> c,c2;
- // populate c
- std::mt19937 gen{92748}; // some arbitrary random seed
- std::discrete_distribution<> rnd{{1,1,1}};
- for(int i=0;i<8;++i){ // assign each type with 1/3 probability
- switch(rnd(gen)){
- case 0: c.insert(warrior{i});break;
- case 1: c.insert(juggernaut{i});break;
- case 2: c.insert(goblin{i});break;
- }
- }
- auto render=[](const boost::base_collection<sprite>& c){
- const char* comma="";
- for(const sprite& s:c){
- std::cout<<comma;
- s.render(std::cout);
- comma=",";
- }
- std::cout<<"\n";
- };
- render(c);
- try{
- //[exceptions_1
- c.insert(elf{0}); // no problem
- //= ...
- //=
- c2=c; // throws boost::poly_collection::not_copy_constructible
- //]
- }catch(boost::poly_collection::not_copy_constructible&){}
- try{
- //[exceptions_2
- c.clear<elf>(); // get rid of non-copyable elfs
- c2=c; // now it works
- // check that the two are indeed equal
- std::cout<<(c==c2)<<"\n";
- // throws boost::poly_collection::not_equality_comparable
- //]
- }catch(boost::poly_collection::not_equality_comparable&){}
- }
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