#include <iostream>
#include <vector>
#include <complex>
class A {
public:
int x;
A() : x(0) {
std::cout << x << std::endl;
}
A(int xx) : x(xx) {
std::cout << x << std::endl;
}
};
class B {
public:
int x;
B() : x(0) {
std::cout << x << std::endl;
}
explicit B(int xx) : x(xx) {
std::cout << x << std::endl;
}
};
class S {
public:
std::vector<int> v;
S(std::initializer_list<int> l) : v(l) {}
S(int i1, int i2) {
v.push_back(i1/2);
v.push_back(i2/2);
}
};
int main(){
std::complex<double> c1;
using namespace std::complex_literals;
c1 = (1.5, 2.5); // expression
std::cout << c1 << std::endl;
c1 = {1.5, 2.5}; // constructor
std::cout << c1 << std::endl;
A a1(1), a2{}, a3(); // a3: function declaration?
a1 = A(2.);
a1 = 3.;
a1 = A();
std::cout << "=============" << std::endl;
A a5{1};
a5 = {2};
//a5 = {3.};
std::cout << "=============" << std::endl;
B b1(1), b2{};
b1 = B(2);
//b1 = 3;
std::cout << "=============" << std::endl;
S s1{1, 2, 3, 4, 5};
for(auto x : s1.v) std::cout << x;
std::cout << std::endl;
S s2{1, 2};
for(auto x : s2.v) std::cout << x;
}
