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 // <ios> 11 12 // template <class charT, class traits> class basic_ios 13 14 // basic_streambuf<charT,traits>* rdbuf(basic_streambuf<charT,traits>* sb); 15 16 #include <ios> 17 #include <streambuf> 18 #include <cassert> 19 20 int main() 21 { 22 std::ios ios(0); 23 assert(ios.rdbuf() == 0); 24 assert(!ios.good()); 25 std::streambuf* sb = (std::streambuf*)1; 26 std::streambuf* sb2 = ios.rdbuf(sb); 27 assert(sb2 == 0); 28 assert(ios.rdbuf() == sb); 29 assert(ios.good()); 30 sb2 = ios.rdbuf(0); 31 assert(sb2 == (std::streambuf*)1); 32 assert(ios.rdbuf() == 0); 33 assert(ios.bad()); 34 } 35
