Compilare: main.cpp: In function 'int main()': main.cpp:74:25: warning: comparison of constant '1' with boolean expression is always false [-Wbool-compare] 74 | while(st.empty()>1 && cross_product(st.back(),v[i])<0) | ~~~~~~~~~~^~ main.cpp:89:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Punct>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 89 | for(i=0;i<st.size();i++) | ~^~~~~~~~~~ main.cpp:49:11: warning: unused variable 'j' [-Wunused-variable] 49 | int i,j,n,poz; | ^ main.cpp: In function 'int cadran(Punct)': main.cpp:29:1: warning: control reaches end of non-void function [-Wreturn-type] 29 | } | ^ main.cpp: In function 'bool cmp(Punct, Punct)': main.cpp:43:1: warning: control reaches end of non-void function [-Wreturn-type] 43 | } | ^ main.cpp: In function 'int main()': main.cpp:49:15: warning: 'poz' may be used uninitialized [-Wmaybe-uninitialized] 49 | int i,j,n,poz; | ^~~