Birleştirme

#include <stdio.h>
#include <string.h>

typedef struct {
    char title[64];
    int year;
    int borrowed;
} Book;

typedef struct {
    char name[64];
    int id;
} Member;

typedef struct {
    Book books[10];
    int count;
} Library;

void library_init(Library *lib) {
    lib->count = 0;
}

void library_add(Library *lib, Book b) {
    lib->books[lib->count++] = b;
}

void print_book(Book *b) {
    printf("Book: %s (%d)\n", b->title, b->year);
}

int checkout(Book *b) {
    if (b->borrowed) return 0;
    b->borrowed = 1;
    return 1;
}

int return_book(Book *b) {
    if (!b->borrowed) return 0;
    b->borrowed = 0;
    return 1;
}

Book *find_by_title(Library *lib, const char *title) {
    for (int i = 0; i < lib->count; i++) {
        if (strcmp(lib->books[i].title, title) == 0) return &lib->books[i];
    }
    return NULL;
}

void menu_run(Library *lib, int choice) {
    switch (choice) {
        case 1:
            for (int i = 0; i < lib->count; i++) print_book(&lib->books[i]);
            break;
    }
}

int main(void) {
    Library lib;
    library_init(&lib);
    Book b1 = {"C Tutorial", 2024, 0};
    library_add(&lib, b1);
    menu_run(&lib, 1);
    return 0;
}