--%>
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 : Explain Branch instruction Branch

    Branch instruction: It stores a new instruction address into the program counter. The consequence of this is the next instruction to be fetched will not generally be the one instantly following the branch instruction. Therefore the normal chronologica

    		•
  • Q : Throughout system testing the

    Someone complains that throughout system testing the application frequently crashes. What probable process problem does which indicate?

    		•
  • Q : Task decomposition and Data

    Discuss the idea of task decomposition and data decomposition within the perspective of parallel programming.

    		•
  • Q : Grade someone activities Normal 0 false

    Normal 0 false false

  • Q : Differentiate between RDO and ADO

    Differentiate between RDO and ADO?

    		•
  • Q : What is Stepwise refinement Stepwise

    Stepwise refinement: It is a divide and conquer approach to the programming, in which a complicated problem is recursively divided into smaller, sub-problems and more manageable. This approach to program design is frequently employed with structured p

    		•
  • Q : State the term INODE State the term

    State the term INODE. Answer: It is a pointer to a block upon the disk and is a unique number. This holds metadata of files.

    		•
  • Q : What is Primitive Type Casting

    Primitive Type Casting: C/C++ allows you to cast between totally unrelated types. This can be problematic for model checking. Avoid type casting between unrelated types and in particular primitive types. For example,

    Q : State the term Win32 State the term

    State the term Win32. Answer: Win32 considers to Microsoft 32 bit Windows API. Applications of Win32 are programs that are built along with the Win32 API.

    		•
  • Q : Explain One Dimensional array One

    One Dimensional array:1) An array is a continuous memory location having similar kind of data in a single row or single column. Declaration in c++ is as under: const int size = 20;int a[size] or int a[2

    		•