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#include <iostream>
#include <stdio.h>
#include <string.h>
 
using namespace std;
 
class book
{
char bookname[20];
char isbn[20];
char author[20];
char category[20];
float price;
int noc;
 
public:
 
void accept()
{
 
cout<<"Enter book name :- \n";
gets(bookname);
cout<<"Enter isbn no of the book:- \n";
gets(isbn);
cout<<"Enter authour name:- \n";
gets(author);
cout<<"Enter category of book:- \n";
gets(category);
cout<<"Enter price of the book :- \n";
cin>>price;
cout<<"Enter no of copies of book available in the library :- \n";
cin>>noc;
}
 
void display()
{
puts(bookname)<<endl;
puts(isbn)<<endl;
puts(author)<<endl;
puts(category)<<endl;
cout<<price<<endl;
cout<<noc<<endl;
}
 
}b[5];
 
int main()
{
for(int i=0;i<5;++i)
{
b[i].accept();
}
 
void issue()
{
int flag=0;
char booksearch[20];
cout<<"Enter name of book member wants to issue :- \n"
gets(booksearch);
  for(i=0;i<5;++i)
  {
      flag=strcmp(booksearch,b[i].bookname)
  }
 
}
 
 if(flag==1)
 {
   b[i].display();
   b[i].issue();
 }
 getch();
 return 0;
 }

prog.cpp: In member function 'void book::accept()':
prog.cpp:22:14: error: 'gets' was not declared in this scope
 gets(bookname);
              ^
prog.cpp: In member function 'void book::display()':
prog.cpp:37:17: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
 puts(bookname)<<endl;
                 ^
prog.cpp:38:13: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
 puts(isbn)<<endl;
             ^
prog.cpp:39:15: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
 puts(author)<<endl;
               ^
prog.cpp:40:17: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
 puts(category)<<endl;
                 ^
prog.cpp: In function 'int main()':
prog.cpp:55:1: error: a function-definition is not allowed here before '{' token
 {
 ^
prog.cpp:74:2: error: expected '}' at end of input
  }
  ^

Standard output is empty