std::unique...operatorbool(3) C++ Standard Libary std::unique...operatorbool(3) NAME std::unique_ptr::operatorbool - std::unique_ptr::operatorbool Synopsis explicit operator bool() const noexcept; (since C++11) (constexpr since C++23) Checks whether *this owns an object, i.e. whether get() != nullptr. Parameters (none) Return value true if *this owns an object, false otherwise. Example // Run this code #include <iostream> #include <memory> int main() { std::unique_ptr<int> ptr(new int(42)); if (ptr) std::cout << "before reset, ptr is: " << *ptr << '\n'; ptr.reset(); ptr ? (std::cout << "after reset, ptr is: " << *ptr) : (std::cout << "after reset ptr is empty") << '\n'; } Output: before reset, ptr is: 42 after reset ptr is empty See also get returns a pointer to the managed object (public member function) http://cppreference.com 2024.06.10 std::unique...operatorbool(3)
NAME | Synopsis | Parameters | Return value | Example | Output: | See also
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