Calling a Member Function From a Destructor
It’s perfectly legal to call a member function?virtual or not?from a destructor. However, you should avoid calling a member function that accesses data members that have already been destroyed. For
It’s perfectly legal to call a member function?virtual or not?from a destructor. However, you should avoid calling a member function that accesses data members that have already been destroyed. For
On exit from a scope, destructors are called for all local automatic objects that are declared in that scope, in the reverse order of their declaration. For example: void f()
Consider the following program: int func(); main() { int n = 0; int arr [2] = { func(), n}; /* ok in C++, not in C */ } A C
A POD (plain old data) type is a union, struct or class with no user-declared constructors, no private or protected non-static data members, no base classes, and no virtual functions.
To zero-initialize an object of type T means that the memory storage occupied by the object is set to binary zeros. More precisely, if T is a built-in data type,
Consider the following class: class A // lacks default constructor { public: A(int x, int y); }; Class A doesn’t have a default constructor. Therefore, the following array declaration will
The standard <math.h> header declares the function ceil() and floor(). These function round the fractional part of a floating point number. ceil() returns the smallest integer that is no less
You’re probably familiar with const member functions such as: class A { public: int get_x() const; // can’t change A’s state }; C++ also supports volatile member functions. You declare
In the body of a non-static member function, the keyword this is a non-lvalue expression whose value is the address of the object for which the function is called. However,
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