--%>
Assignment Help - homework help

"Const" qualifier for pointers and member function

In C++ an arguments to a function can be declared as constant as shown below:

Int strlen (constant char * p);

Int length (constant string & s);

The qualifier const tells the compiler that the function should not modify the arguments. The compiler will produce error when this situation is violated. This type of declaration is significant only when we pass arguments by reference or pointer.

Constant member functions: If a member function does not alter any data in the class, than we have may declare it as a constant member function as follows:

Void mul (int. Int) constant;

Double get _ balance constant;

The qualifier constant is appended to the function proto types (in both declaration and definition). The compiler is as a constant will generate an error message if such functions try to alter the data values.

 

 

 

   Related Questions in Programming Languages

  • Q : What is Search path Search path : It is

    Search path: It is a list of folders (that is, directories) to be searched - for a program or class, for example.

    		•
  • Q : Define the term Arpanet Define the term

    Define the term Arpanet: It is a network which was a forerunner of the global Internet.

    		•
  • Q : What are Logical operators Logical

    Logical operators: The operators, like &&, ||, &, | and ^ which take two Boolean operands and generate a Boolean outcome. Employed as part of a Boolean expression, frequently in the condition of the control structure.

    		•
  • Q : What do you mean by ActiveX control

    What do you mean by ActiveX control? Describe in brief.

    		•
  • Q : Define CORBA Define CORBA ? What does

    Define CORBA? What does it do?

    		•
  • Q : Explain Return statement Return

    Return statement: It is a statement employed to terminate the execution of the method. The method with void return type might only have return statements of the form as: return;

  • Q : Homework Assignment How much would it

    How much would it cost to do a basic program within the given requirements?

    		•
  • Q : Explain Multiple inheritance Multiple

    Multiple inheritance: The capability of a class or interface to expand more than one interface or class. In Java, multiple inheritance is only accessible in the circumstances which are shown below: An interf

    		•
  • Q : What is High level programming language

    High level programming language: Languages like Ada, Java, C++, and so on which give programmers with features like control structures, classes, methods, packages, and so forth. Such features are mostly independent of any specific instruction set, and

    		•
  • Q : Explain Polymorphism Polymorphism : It

    Polymorphism: It is the ability of an object reference to be employed as if it referred to an object with various forms. The polymorphism in Java outcomes from both class inheritance and interface inheritance. The actually different forms frequently o

    		•