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//
//  main.cpp
//  ai
//
//  Created by Steven Wiseman on 16/06/2026.
//
 
#include <iostream>
#include <list>
 
class BehaviourSeek;
class Actor;
 
class Actor {
 
public:
 
    Actor (std::string n) {
 
        m_name = n;
 
    }
 
    std::string m_name;
    std::list <BehaviourSeek*> BehaviourList;
 
};
 
class BehaviourSeek {
 
public:
 
    BehaviourSeek (Actor* target) {
 
        m_target = target;
 
        std::cout << "hiya" << std::endl;
 
    }
 
    Actor* m_target;
 
};
 
int main(int argc, const char * argv[]) {
 
    Actor a0 ("Steven");
    Actor a1 ("Aleksandra");
 
    BehaviourSeek date (a1);
 
    a0.BehaviourList.push_back (date);
 
    return EXIT_SUCCESS;
}
 

prog.cpp: In function ‘int main(int, const char**)’:
prog.cpp:50:27: error: no matching function for call to ‘BehaviourSeek::BehaviourSeek(Actor&)’
     BehaviourSeek date (a1);
                           ^
prog.cpp:33:5: note: candidate: ‘BehaviourSeek::BehaviourSeek(Actor*)’
     BehaviourSeek (Actor* target) {
     ^~~~~~~~~~~~~
prog.cpp:33:5: note:   no known conversion for argument 1 from ‘Actor’ to ‘Actor*’
prog.cpp:29:7: note: candidate: ‘constexpr BehaviourSeek::BehaviourSeek(const BehaviourSeek&)’
 class BehaviourSeek {
       ^~~~~~~~~~~~~
prog.cpp:29:7: note:   no known conversion for argument 1 from ‘Actor’ to ‘const BehaviourSeek&’
prog.cpp:29:7: note: candidate: ‘constexpr BehaviourSeek::BehaviourSeek(BehaviourSeek&&)’
prog.cpp:29:7: note:   no known conversion for argument 1 from ‘Actor’ to ‘BehaviourSeek&&’
prog.cpp:52:37: error: no matching function for call to ‘std::__cxx11::list<BehaviourSeek*>::push_back(BehaviourSeek&)’
     a0.BehaviourList.push_back (date);
                                     ^
In file included from /usr/include/c++/8/list:63,
                 from prog.cpp:9:
/usr/include/c++/8/bits/stl_list.h:1219:7: note: candidate: ‘void std::__cxx11::list<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = BehaviourSeek*; _Alloc = std::allocator<BehaviourSeek*>; std::__cxx11::list<_Tp, _Alloc>::value_type = BehaviourSeek*]’
       push_back(const value_type& __x)
       ^~~~~~~~~
/usr/include/c++/8/bits/stl_list.h:1219:7: note:   no known conversion for argument 1 from ‘BehaviourSeek’ to ‘BehaviourSeek* const&’
/usr/include/c++/8/bits/stl_list.h:1224:7: note: candidate: ‘void std::__cxx11::list<_Tp, _Alloc>::push_back(std::__cxx11::list<_Tp, _Alloc>::value_type&&) [with _Tp = BehaviourSeek*; _Alloc = std::allocator<BehaviourSeek*>; std::__cxx11::list<_Tp, _Alloc>::value_type = BehaviourSeek*]’
       push_back(value_type&& __x)
       ^~~~~~~~~
/usr/include/c++/8/bits/stl_list.h:1224:7: note:   no known conversion for argument 1 from ‘BehaviourSeek’ to ‘BehaviourSeek*&&’

Standard output is empty