Для справки это заголовок "book_functions.h": < /p>
#ifndef BOOK_FUNCTIONS_H
#define BOOK_FUNCTIONS_H
#define MAX_TITLE 50
#define MAX_AUTHOR 50
#define MAX_CATEGORY 50
#define MIN_CAPACITY 4
namespace bfs {
struct Book {
char title[MAX_TITLE];
char author[MAX_AUTHOR];
char category[MAX_CATEGORY];
int ISBN;
int volume;
bool availability;
void* borrowed_by;
};
template void set_string_field(char(&)[size], const std::string&);
void set_string_field(char*, size_t, const std::string&);
void display_book(const Book&);
void push_book(Book*, int&, Book);
// book functions
void add_book(Book*&, int&, int&, const Book&);
void delete_book(Book*&, int&, int&, int);
void list_of_books(Book*, const int&);
void StudentServices();
Book input_book();
}
#endif // BOOK_FUNCTIONS_H
< /code>
И это источник "book_functions.cpp" < /p>
#include "book_functions.h"
#include
#include
using namespace bfs;
Book input_book() {
Book book;
book.availability = true;
book.borrowed_by = nullptr;
std::cin.ignore(); // Flush input buffer
std::cout
Подробнее здесь: https://stackoverflow.com/questions/795 ... ot-specify
