PRACTICAL-SET-9

9_1.c
 Write a program that uses a table  of integers  whose size will be specified interactively at run time.

#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#define NULL 0
void main()
{
  int *p,*table,i;
  int size;
  clrscr();
  printf("what is the size of table");
  scanf("%d",&size);
  printf("\n");
  table=(int *)malloc(size*sizeof(int));
  printf("input table values\n");
   for(p=table,i=0;i<size;i++,p++)
     {
     scanf("%d",p);
     }
     for(p=table,i=0;i<size;i++,p++)
     {
       printf("%d is stored at address %u\n",*p,p);
     }
     getch();
   }



9_2.c
Write a program to store a character string in block of memory space created by malloc and then modify the same to store a large string. 
#include<stdio.h>
#include<conio.h>
#include<string.h>
#include<stdlib.h>
#define NULL 0
void main()
 {
   char *buffer,*p;
   int i=0;
   clrscr();
   buffer=(char *)malloc(10);
   strcpy(buffer,"RAJKOT");
   for(p=buffer,i=0;*p!='\0';p++,i++);

    printf("buffer size of %d created",i);
    printf("buffer contains%s",buffer);
    buffer=(char *)realloc(buffer,15);
    printf("buffer size modified");
    printf("buffer still contain:%s\n",buffer);
    strcpy(buffer,"AHMEDABAD");
    for(p=buffer,i=0;*p!='\0';p++,i++);
    printf("buffer size of %d created\n",i);
    printf("buffer now contains:%s",buffer);
    free(buffer);
    getch();
   }