Thread: Respected All :)

Hi,

Hope you all are great there??

Well apologies for the last posts, also thanks Malc for telling the rule.

I am new to the forum, also this is the first time I had joined any forum and I have joined it because I like the rule of it that it doesn't make the other user copy the stuff but help them where they get stuck.

Despite of teaching English it is a very good forum and if everyone have problem reading my Post, kindly don't.

Anyways, I am new to programming and I hope this forum will help me where i get stuck

so here is my code as i said once the assignment due date is over i will post it:

Code:

#include <iostream.h>
#include <stdlib.h>
#include <conio.h>
#include <ctype.h>

int main ()
{
  int i, n;
  int *pointerData;
  clrscr();
   
 
   cout<<"Enter the size of the array: ";
   cin>>i;
   
  if(!isalpha(i))
  { 
  pointerData = (int*) calloc (i,sizeof(int));
  
  if (pointerData==NULL)

    {
      cout<<"Unable to allocate memory for array."<<endl;
      return 0;
    }

  for (n = 0; n < i; n++)
  {
    cout<<"Enter number: ";
    cin>>pointerData[ n ];
  }
  cout<<"The elements of the array are:"<<endl;

  for (n = 0; n < i; n++)
      cout<<pointerData[ n ]<<" ";

    pointerData =(int*) realloc(pointerData, 2 * i * sizeof(int));

   if (pointerData==NULL)

    {
      cout<<"Unable to re-allocate memory for array."<<endl;
      return 0;
    }

    cout<<""<<endl<<"Enter the elements in the array after reallocation:"<<endl;

  for (n = i; n < i*2; n++)
  {
    cout<<"Enter number: ";
    cin>>pointerData[ n ];
  }

   cout<<endl;

  for (n = 0; n < i*2; n++)
      cout<<pointerData[ n ]<<" ";

  free (pointerData);
 }
  getch();
  return 0;
}

The only problem i get is when the user enter an alphabet, the programme is not running properly instead it get stucked in the loop.

I hope anybody can help me out in this regard.

Apologies in advance for English grammar.

Regards

Hello,

I want to Restrict the user from entering alphabets

Regards