c++ - deque.push_front() giving error "expression must have class type" -
i trying initialize deque pointers user defined struct, tile, in order eliminate unnecessary copying. my code looks this: tile *start = new tile(0,0,0, 'q', nullptr); deque<tile*> search(); search.push_front(start); the above code located in main.cpp. the tile struct looks this, , contained in hunt.h: struct tile { int row; int col; int farm; char tile; tile * added_me; tile(int f, int r, int c, char t, tile * a) : farm(f), row(r), col(c), tile(t), added_me(a){} }; the layout of program follows: main.cpp: includes "io.h" io.h: includes "hunt.h", various standard libraries hunt.h: includes vector, deque, tile struct however, getting error in main.cpp when try push_front(start): expression must have class type." wasn't sure if possible fault in #includes causing error, please let me know if case. otherwise, not entirely sure how fix error. thanks in advance! when write deque<tile*&
