--%>
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 : Define debugging of joomla extension

    Define debugging of joomla extension.

    		•
  • Q : State De Morgans Theorem De Morgan's

    De Morgan's Theorem: The two rules which can help to simplify Boolean expressions comprising multiple logical-not operators in combination with the other Boolean operators.

    		•
  • Q : Give some instances of XML DTDs or

    Give some instances of XML DTDs or schemas which you have worked with?

    		•
  • Q : Explain Information hiding Information

    Information hiding: The practice of making sure that only as much information is exposed regarding the implementation of a class as is strictly needed. Hiding needless knowledge of implementation makes it not as much of likely that other classes will

    		•
  • Q : What is Memory leak Memory leak : It is

    Memory leak: It is a situation in which memory which is no longer being employed has not been returned to the pool of free memory. The garbage collector is designed to return unreferenced objects to the free memory pool in order to shun memory leaks.<

    		•
  • Q : Define the term Heterogeneous collection

    Define the term Heterogeneous collection: It is a collection of objects with distinct dynamic types

    		•
  • Q : State the term LDAP State the term LDAP

    State the term LDAP?

    		•
  • Q : Define Number of Threads Number of

    Number of Threads: Threads can be a useful abstraction and implementation mechanism to partition independent program actions. However, when there is coordination (or interference) between these threads, the required synchronization mechanisms increase

    		•
  • Q : One-time signature scheme Define

    Define one-time signature scheme?

    		•
  • Q : Define Livelock Livelock : It is a

    Livelock: It is a situation in which a thread waits to be notified of a condition however, on waking, finds that the other thread has inverted the condition another time. The primary thread is forced to wait again. Whenever this occurs for an indefini

    		•