funçoes gerais para o enunciado .cpp

#include "Utils.h"
#include "LinkedListFuncs.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "FileOps.h"


char* printBooks(void* book) {

	char* ret = (char*)malloc(sizeof(char) * 1000);

	*ret = NULL;

	strcat(ret, "Author -> ");
	strcat(ret, ((Book*)(book))->author);
	strcat(ret, " // Title -> ");
	strcat(ret, ((Book*)(book))->title);
	strcat(ret, " // Availability -> ");

	if (((Book*)(book))->state) {
		strcat(ret, "Available!");
	}
	else {
		strcat(ret, "Not available!");
	}

	return ret;

}

char* printMembers(void* member) {

	char* ret = (char*)malloc(sizeof(char) * 1000);
	*ret = NULL;

	int numberSize = 0;
	int number = ((Member*)(member))->memNumber;

	while (number != 0) {
		number /= 10;
		numberSize++;
	}

	char* aux = (char*)malloc(sizeof(char) * numberSize);

	strcat(ret, "Name -> ");
	strcat(ret, ((Member*)(member))->name);
	strcat(ret, " // Number -> ");

	sprintf(aux, "%d", ((Member*)(member))->memNumber);

	strcat(ret, aux);
	strcat(ret, " // Book requested -> ");

	if (((Member*)(member))->solicited != NULL) {
		strcat(ret, (((Member*)(member))->solicited)->title);
	}
	else {
		strcat(ret, "This member has no books in his possession!");
	}

	return ret;

}

void modifyBooks(List* bookList) {

	int op;


	do {

		printf("1 - Add\n"
			"2 - Remove\n"
			"0 - Exit\n");

		scanf("%d", &op);

		switch (op) {
		case 1:
			//Qnd este case acaba o registo que contem os dados do pData adicionado
			//é alterado e so o valor do book->state é que se mantem
			//os valores de book->title e book->author desaparem e sao substituidos
			//por lixo como se pode ver ao dar debug com a janela memory1 aberta
			Status x;
			do {
				x = addBook(bookList);

			} while (x == ERROR);
			break;
		}

	} while (op != 0);
}

Status addBook(List* bookList) {

	int aux;

	Book b = Book();
	Book* ptr = &b;

	while ((getchar()) != '\n') {}

	printf("Book name: \n");
	scanf("%[^\n]", ptr->title);

	while ((getchar()) != '\n') {}

	printf("Book author: \n");
	scanf("%[^\n]", ptr->author);

	while ((getchar()) != '\n') {}

	do {

		printf("Book availability(0/1): \n");
		scanf("%d", &aux);

	} while (aux != 0 && aux != 1);

	(aux == 1) ? ptr->state = true : ptr->state = false;

	return InsertEnd(bookList, ptr);
}