Question

Need help writing this code in C:

/*WRITE A FUNCTION THAT MALLOCS 1 PHONE BOOK, INITALIZES IT WITH A DEEP COPY OF THE GIVEN STRING, THEN REALLOCS TO 10 PHONE BOOKS, SETTING EACH OF THEM TO THE SAME DEFAULT NAME. YOU MAY USE STRCPY*/
PhoneEntries * initbook(char * defaultstring)
{
PhoneEntries * pBook;
int i = 0;

/*UNCOMMENT THIS CODE OUT AFTER YOU FINISH. IT SHOULD PRINT OUT TEST NAME TEN TIMES.
for( i =0; i < 10; i++)
    printf("Phone entries %s \n", pBook[i].pNames);*/

return pBook;
}

Answer 1

PhoneEntries * initbook(char * defaultstring)
{
  //MALLOCS 1 PHONE BOOK
  PhoneEntries * pBook = (PhoneEntries*) malloc(sizeof(PhoneEntries));
  int i = 0;

  pBook->pNames = (char*) malloc(sizeof(char)*50);
  //INITALIZES IT WITH A DEEP COPY OF THE GIVEN STRING
  strcpy(pBook->pNames,defaultstring);

  pBook = (PhoneEntries*) realloc(pBook, sizeof(PhoneEntries)*10);
  for(i = 0;i<10;i++){
    pBook[i].pNames = (char*) malloc(sizeof(char)*50);
    //INITALIZES EACH WITH A DEEP COPY OF THE GIVEN STRING
    strcpy(pBook[i].pNames,defaultstring);
  }


  for( i =0; i < 10; i++)
    printf("Phone entries %s \n", pBook[i].pNames);

  return pBook;
}

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