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 20int 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