// Created by Eikos #include #include using namespace std; class A { public: static int new_count; static int cp_count; static int conv_count; static int del_count; A(){new_count++;} A(const A &a){cp_count++;} A(int i){conv_count++;} ~A(){del_count++;} }; int A::new_count = 0; int A::conv_count = 0; int A::del_count = 0; int A::cp_count = 0; int main() { cout << "# of created 'A' objects: " << A::new_count << endl; cout << "# of copied 'A' objects: " << A::cp_count << endl; cout << "# of converted to 'A' objects: " << A::conv_count << endl; cout << "# of destroyed 'A' objects: " << A::del_count << endl; { cout << "Allocate vector size 10" << endl; //vector v(10); vector v(10, 0); cout << "Destroy the vector" << endl; } cout << "# of created 'A' objects: " << A::new_count << endl; cout << "# of copied 'A' objects: " << A::cp_count << endl; cout << "# of converted to 'A' objects: " << A::conv_count << endl; cout << "# of destroyed 'A' objects: " << A::del_count << endl; return 0; } /* output when A::constructor needs 0 param # of created 'A' objects: 0 # of destroyed 'A' objects: 0 Allocate vector size 10 Destroy the vector # of created 'A' objects: 10 # of destroyed 'A' objects: 10 output when A::constructor needs 1 param # of created 'A' objects: 0 # of destroyed 'A' objects: 0 Allocate vector size 10 Destroy the vector # of created 'A' objects: 1 # of destroyed 'A' objects: 11 */

Vector - example