--%>
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 : How can we start Array Index from Zero

    How can we start Array Index from Zero?

    		•
  • Q : Programming assignment Written (7

    Written (7 points): pp. 303-304: 1, 5, 6, 7 pp. 363-364: 3, 4, 6. pp.303-304: 1. In what ways are the initialization, repetition test, and update steps alike for a sentinel-controlled loop and an endfile-controlled loop? How are they different? 5. Rewrite the program

    		•
  • Q : What is Public interface Public

    Public interface: The members of a class prefixed with public access modifier. All these members are visible to each and every class in a program.

    		•
  • Q : Acknowledge inside a transaction Normal

    Normal 0 false false

  • Q : Static and dynamic modeling in

    Illustrate in brief the term static and dynamic modeling in programming?

    		•
  • Q : Explain Increment operator Increment

    Increment operator: The operator (++) which adds one to its operand. It consists of two forms: pre-increment (++x) and post-increment (x++). In its pre-increment form, the outcome of the expression is the value of its argument subsequent to the increm

    		•
  • Q : Define the term Array Define the term

    Define the term Array: It is a fixed-size object which can hold zero (0) or more items of the array's declared type.

    		•
  • Q : What is validating parser What is

    What is validating parser? Answer: A parser makes sure that an XML document is valid additionally to being well formed.

    		•
  • Q : Define Uniform Resource Locator Uniform

    Uniform Resource Locator: It is a Uniform Resource Locator (abbreviated as URL) expands the concept of file access from a wholly local context to one in which the resources are named uniformly, irrespective of where they may be physically situated. A

    		•
  • 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

    		•