The pointer to the structure saves the address of the entire structure.
Mainly used to create complex data structures, such as linked lists, trees, graphs, etc.
You can use a special operator (arrow operator -> ) to access the members of the structure.
The following is the declaration of a pointer to a structure:
struct tagname *ptr;
For example, struct Student *s;
You can access a pointer to a structure using the following code -
Ptr-> membername;
For example, s->sno, s->sname, s->marks;
The following is C program for pointer structure -
#include<stdio.h> struct student{ int sno; char sname[30]; float marks; }; main ( ){ struct student s; struct student *st; printf("enter sno, sname, marks:"); scanf ("%d%s%f", & s.sno, s.sname, &s. marks); st = &s; printf ("details of the student are"); printf ("Number = %d</p><p>", st ->sno); printf ("name = %s</p><p>", st->sname); printf ("marks =%f</p><p>", st ->marks); getch ( ); }
When the above program is executed, the following results are produced-
enter sno, sname, marks:1 priya 34 details of the student areNumber = 1 name = priya marks =34.000000
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