In C++11, what is the term for a constructor that invokes another constructor of the same class in its initialization list?
Option C is correct.. C++11 introduced Delegating Constructors, allowing one constructor to call another constructor within the same class using the initialization list syntax.
Which constructor syntax in C++11 explicitly instructs the compiler to suppress the automatic generation of a default constructor?
Option B is correct.. Using 'ClassName() = delete;' disables and deletes the constructor, preventing objects from being created with that signature.
What type of C++11 constructor transfers ownership of dynamic resources using rvalue references (ClassName&&) without copying data?
Option B is correct.. A Move Constructor takes an rvalue reference (ClassName&&) and steals or transfers resources from a temporary object without executing costly deep allocations.
If a class explicitly defines a parameterized constructor but no default constructor, what happens when code attempts to execute 'ClassName obj;'?
Option C is correct.. If any custom constructor is explicitly defined in a class, the compiler stops automatically generating the implicit default constructor. Declaring 'ClassName obj;' will fail to compile.
Can a C++ constructor be declared as 'virtual'?
Option A is correct.. Constructors cannot be virtual. To build a VTABLE/VPTR lookup, the object structure must already exist in memory. Virtual functions require a VPTR that is set up by the constructor during object instantiation.