Computer Programming C Laboratory: Pointers C Programs

Write a C program to demonstrate the use of structure pointers

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using pointers - C Programming

Write a C program to demonstrate the use of structure pointers.

While using structure pointer, be sure and take care of the precedence of operators, because the operators '‒>', '.', '()', and '[ ]' are frequently used in structure pointers.

/* C Program to demonstrate the use of structure pointers */

#include <stdio.h>

/* Structure book consists of bno, cost and pointer *bname[] */

struct book

{

int bno;

char *bname [20];

int cost;

}

main()

{

/* Local definitions */

struct book_p[3],*ptr;

printf("\nEnter book details.....\n");

printf("Enter Book Number, Name, Cost..");

for(ptr=p;ptr<p+3;ptr ++)

scanf("%d %s %d", &ptr‒>bno, ptr‒> bname, &ptr‒> cost);

printf("STRUCTURE OUTPUT \n");

ptr=p;

while (ptr<p+3)

{

printf("%5d\t%‒20s \t%d\n",ptr‒>bno,ptr‒>bname, ptr‒> cost);

ptr++;

} /* while */

getch();

} /* main */

OUTPUT

Enter book details.....

Enter Book Number, Name, Cost..

101 COMPUTERPRACTICE_1 240

201 COMPUTERPRACTICE_2 250

202 C++ AND JAVA

STRUCTURE OUTPUT

101 COMPUTERPRACTICE_1 240

201 COMPUTERPRACTICE_2 250

202 C++ AND JAVA 280

EXPLANATION: In main function ptr declared as a pointer. Using for loop the variable bno, bname and cost are read, then p is assigned to the pointer variable ptr. The while loop checks the condition (ptr<p+3) or not. If condition satisfied then prints, bno, bname, cost using pointer variable ptr and pointer variable get increment else the program terminated.

Computer Programming C Laboratory: Pointers C Programs : Tag: C Programming : - Write a C program to demonstrate the use of structure pointers

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Computer Programming C Laboratory: Pointers C Programs

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