Topic       : C-Language Documentation
Author      : John Kormylo
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Subject     : Documentation/C-Language
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View Ref-File[ Structures ]

A structure is a block of consecutive data items of mostly different
types, referenced by member names.  For example,

  struct list {
    char *name;
    int index;
   };

where 'list' is the structure name, and 'name' and 'index' are member
names.  Now that 'struct list' is a defined data type, it can be used
in variable definitions:

  struct list card[100];

where 'card' is an array of structures.  The individual items in the
structure are referenced using the '.' and '->' Membership Operators:

  card[i].name = "John Doe."
  (card + i)->index = 1;

One can also initialize a global or static structure variable:

  static struct list dead = {"deceased", -1};

Note: All entries (except char) will be aligned to even offsets.
      sizeof( struct <name> ) will always be an even number.

See also Names, Bit Fields, Linked List and typedef.