c code for library system
write a code for library management system
Let us work on the menu of a library. Create a structure containing book information like accession number, name of author, book title and flag to know whether book is issued or not. Create a menu in which the following can be done. A.- Display book information B- Add a new book C - Display all the books in the library of a particular author D - Display the number of books of a particular title E - Display the total number of books in the library F- Issue a book (If we issue a book, then its number gets decreased by 1 and if we add a book, its number gets increased by 1).
Code
#include <stdio.h>
#include <string.h>
int total_book = 0;
int total = 0;
typedef struct book
{
char name_of_author[50];
char book_title[50];
int flag;
} bo;
void display(bo *x)
{
for (int i = 0; i < total_book; i++)
{
printf("book title: %s\n", x[i].book_title);
printf("book author: %s\n", x[i].name_of_author);
printf("issued, 0-> no ,1-> yes: %d\n", x[i].flag);
}
}
void display_author(bo *x, char *check)
{
for (int i = 0; i < total_book; i++)
{
if (strcmp(check, x[i].name_of_author))
{
printf("book title: %s\n", x[i].book_title);
printf("book title: %s\n", x[i].name_of_author);
printf("issued, 0-> no ,1-> yes: %d\n", x[i].flag);
}
}
}
void display_title(bo *x, char *check)
{
for (int i = 0; i < total_book; i++)
{
if (strcmp(check, x[i].book_title))
{
printf("book title: %s\n", x[i].book_title);
printf("book title: %s\n", x[i].name_of_author);
printf("issued, 0-> no ,1-> yes: %d\n", x[i].flag);
}
}
}
void add(bo *x)
{
getchar();
printf("enter the name of book\n");
gets(x[total_book].book_title);
printf("enter the name of author\n");
gets(x[total_book].name_of_author);
x->flag = 0;
total_book++;
total++;
printf("book added\n");
}
void issue(bo *x, char *check)
{
for (int i = 0; i < total_book; i++)
{
if (strcmp(check,x[i].name_of_author) || strcmp(check,x[i].book_title))
{
x[i].flag = 1;
printf("book issued\n");
total--;
}
}
}
int main()
{
int l, n;
bo library[100];
char cc[50];
do
{
printf("select what you want,enter the number\n");
printf("1->to display\n");
printf("2->to display by author\n");
printf("3->to display by title\n");
printf("4->toatl of number of books in library\n");
printf("5->issue a book\n");
printf("6->add book\n");
scanf("%d", &l);
switch (l)
{
case 1:
display(library);
break;
case 2:
printf("enetr the name\n");
getchar();
gets(cc);
display_author(library, cc);
break;
case 3:
printf("enetr the name\n");
getchar();
gets(cc);
display_title(library, cc);
break;
case 4:
printf("total number of books: %d\n", total);
break;
case 5:
printf("enetr the name\n");
getchar();
gets(cc);
issue(library, cc);
break;
case 6:
add(library);
display(library);
break;
default:
printf("invalid\n");
}
printf("enter 1 to go menu or 0 to exit\n");
scanf("%d", &n);
} while (n);
return 0;
}