Wednesday, 10 April 2013

Different Between Structure and Union

Different Between Structure and Union  :-


                      Structure

                      Union

We call access all the members of structure at a time.
Only one members can be accessed at a time.
Memory is allocated for all variable.
Memory is allocated for variable which variable require more memory.
All members of structure can be initialized.
Only the first member of a union can be initialized.
Struct keyword is used  to declare structure.
Union keyword is used to declare union.
All  members of structure stores in unique memory location.
All members of union stores in same location.
Syntax

 Struct

    {

       Int a;
       Float b;
  }var;
Syntax

union
    {

     Int a;
     Float b;
    } var;
Instruction pipelining can be implemented easily.
  Instruction pipelining can not be implemented easily.


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