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• what is meant by structure ?
  application of structure?
  difference between structure and unions?

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1. Submitted By: mujeeb — July 8, 2008 not yet rated   + -

   structure is abstract data type!
   structures are used to represent data in user defined type.
   each member of structure is allocated separate memory, for memory optimization memory padding is to be considered.
   contrary in a union memory is not allocated to each member variable, instead to member which occupies highest amount of memory, the same memory is used among all the members.

3. Submitted By: satya prakash — July 11, 2008 not yet rated   + -

   the main difference b/w structure and union is occupying of size.

   the size of the union is depending on the element which has largest size in that union.
   where as the size of the structure is sum of all the elements sizes declared in that structure.

   the application of structure is to represent different data items in a continuous memory block.

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