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 cerr; 13 14 #include <iostream> 15 #include <cassert> 16 17 int main() 18 { 19 #if 0 20 std::cerr << "Hello World!\n"; 21 #else 22 #ifdef _LIBCPP_HAS_NO_STDOUT 23 assert(std::cerr.tie() == NULL); 24 #else 25 assert(std::cerr.tie() == &std::cout); 26 #endif 27 assert(std::cerr.flags() & std::ios_base::unitbuf); 28 #endif // 0 29 } 30
