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Processing a Structure in C programming

    
             The members of a structure are usually processed individually, as separate entity. A structure member can be accessed by writing
   structure_variable.member
             Here, structure_variable refers to the name of  a structure-type variable and member refers to the name of a member within the structure. Again, dot that separates the variable name from the member name.
                 In the case of nested structure (if a structure member is itself a structure), the member within inner structure is accessed as
               structure_variable.member.submember                    
                                  This will be clear in nested structure section.

An Example:                
Create a structure named student that has name, roll, marks and remarks as members. Assume appropriate types and size of member. Write a program using structure to read and display the data entered by the user.
void main()
  {
    struct student{               {
                        char name[20];
                        int roll;
                        float marks;
                        char remark;
                        };
   struct student s;
   printf("Enter name:\t");
  gets(s.name);
  printf("\nEnter roll:\t");
  scanf("%d",&s.roll);
  printf("\n Enter marks\t");
  scanf("%f",&s.marks);
  printf("Enter remark p for pass or f for fail\t");
  s.remark=getche();
  printf("\n\n\nThe Detail Information is\n");         printf("\Name=%s\tRoll=%d\nMarks=%f\tRemark=%c",s.name,s.roll,s.marks,s.remark);
  getch();

  }

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