Language: C++


	
#include<iostream>
int main(){
	int a,b;
	cin << a << b;
	
	if(a > b) {
		cout << 'a > b' << endl;
	}else if(a < b){
		cout << 'a < b' << endl;
	}else if(a == b){
		cout << 'a == b' << endl;
	}
	
	return 0;
}

Compiler output:
a.cc:9:25: warning: multi-character literal with 5 characters exceeds 'int' size of 4 bytes
    9 |                 cout << 'a > b' << endl;
      |                         ^~~~~~~
a.cc:11:25: warning: multi-character literal with 5 characters exceeds 'int' size of 4 bytes
   11 |                 cout << 'a < b' << endl;
      |                         ^~~~~~~
a.cc:13:25: warning: multi-character literal with 6 characters exceeds 'int' size of 4 bytes
   13 |                 cout << 'a == b' << endl;
      |                         ^~~~~~~~
a.cc: In function 'int main()':
a.cc:6:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |         cin << a << b;
      |         ^~~
      |         std::cin
In file included from a.cc:3:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:9:17: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    9 |                 cout << 'a > b' << endl;
      |                 ^~~~
      |                 std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:9:36: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    9 |                 cout << 'a > b' << endl;
      |                                    ^~~~
      |                                    std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:11:17: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   11 |                 cout << 'a < b' << endl;
      |                 ^~~~
      |                 std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:11:36: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   11 |                 cout << 'a < b' << endl;
      |                                    ^~~~
      |                                    std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:13:17: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   13 |                 cout << 'a == b' << endl;
      |                 ^~~~
      |                 std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:13:37: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   13 |                 cout << 'a == b' << endl;
      |                                     ^~~~
      |                                     std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~