1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <iostream> 11 12 // istream cin; 13 14 #include <iostream> 15 #include <cassert> 16 17 int main() 18 { 19 #if 0 20 std::cout << "Hello World!\n"; 21 int i; 22 std::cout << "Enter a number: "; 23 std::cin >> i; 24 std::cout << "The number is : " << i << '\n'; 25 #else // 0 26 assert(std::cin.tie() == &std::cout); 27 #endif 28 } 29