--%>
Assignment Help - homework help

Define Unions

Unions: Unions in C and C++ are object overlays—aggregate quantities such as structs, except that each element of the union consists offset 0, and the total size of union is only as large as is required to hold its largest member (Kernighan and Ritchie 1998).

2120_unions.jpg

Unions are not supported by languages like Java. The translation has to generate different objects for the union itself and all its fields, plus the code to keep their values consistent. This results in additional overhead and can increase the state space considerably.

   Related Questions in Programming Languages

  • Q : Kernel Mode Illustrate what are the

    Illustrate what are the different functions of Kernel Mode, interrupts and system calls?

    		•
  • Q : Define Double buffering Double

    Double buffering: A graphics method employed to smooth animation. The later version of an image is drawn `at the back the scenes' and then exhibited in its totality whenever the drawing is finished. The supposition is that it will be relatively fast t

    		•
  • Q : Define process group Define the process

    Define the process group?

    		•
  • Q : Updating the Status of an Order in SQL

    Build a procedure named STATUS_SHIP_SP which permits a company to employee in the Shipping Department to update the status of an order to add up shipping information. The BB_BASKETSTATUS table maintains a list of events for each order and hence a shopper can see the c

    		•
  • Q : Define Well-known port Well-known port

    Well-known port: It is a port number at which a server provides a familiar service. For example, 80 is well-known port number for the servers employing the HyperText Transfer Protocol (abbreviated as HTTP).

    		•
  • Q : Different file types Specify the

    Specify the different file types?

    		•
  • Q : What is Octal character constant Octal

    Octal character constant: It is a character constant in the form of \ddd, where each d is an octal digit. This might be employed for characters with a Unicode value in the range of 0 to 255.

    		•
  • Q : Visual basic programming homework A

    A local car hire company has approached you to create a user-friendly computer program that will enable their hire operatives to send invoices to their customers. The operatives are not computer literate so a user-friendly, uncomplicated and robust interface is required. At presen

    		•
  • Q : Explain String String: It is an

    String: It is an instance of the String class. A string comprises of zero or more Unicode characters, and they are not mutable or immutable, once formed. The literal string is written between a pair of string delimiters ("), as:

    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

    		•