char *getString()
{
  char *str = "GfG"; /* Stored in read only part of shared segment */

  /* No problem: remains at address str after getString() returns*/
  return str;
}

int main()
{
  printf("%s", getString());
  getchar();
  return 0;
}

// The below program alse works perfectly fine as the string is stored in heap segment and
// data stored in heap segment persists even after return of getString()
char *getString()
{
  int size = 4;
  char *str = (char *)malloc(sizeof(char)*size); /*Stored in heap segment*/
  *(str+0) = 'G';
  *(str+1) = 'f';
  *(str+2) = 'G';
  *(str+3) = '\0';

  /* No problem: string remains at str after getString() returns */
  return str;
}
int main()
{
  printf("%s", getString());
  getchar();
  return 0;
}

// But, the below program may print some garbage data as string is stored in stack frame of function getString()
// and data may not be there after getString() returns.
char *getString()
{
  char str[] = "GfG"; /* Stored in stack segment */

  /* Problem: string may not be present after getSting() returns */
  return str;
}
int main()
{
  printf("%s", getString());
  getchar();
  return 0;
}