c++ shared pointer operator bool
#include <iostream>
#include <memory>
int main() {
std::shared_ptr<int> ptr = std::make_shared<int>(42);
if (ptr) {
std::cout << "Pointer is valid." << std::endl;
} else {
std::cout << "Pointer is null." << std::endl;
}
ptr.reset();
if (ptr) {
std::cout << "Pointer is valid." << std::endl;
} else {
std::cout << "Pointer is null." << std::endl;
}
return 0;
}