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 // void set_rdbuf(basic_streambuf<charT, traits>* sb); 15 16 #include <ios> 17 #include <streambuf> 18 #include <cassert> 19 20 struct testbuf 21 : public std::streambuf 22 { 23 }; 24 25 struct testios 26 : public std::ios 27 { 28 testios(std::streambuf* p) : std::ios(p) {} 29 void set_rdbuf(std::streambuf* x) {std::ios::set_rdbuf(x);} 30 }; 31 32 int main() 33 { 34 testbuf sb1; 35 testbuf sb2; 36 testios ios(&sb1); 37 try 38 { 39 ios.setstate(std::ios::badbit); 40 ios.exceptions(std::ios::badbit); 41 } 42 catch (...) 43 { 44 } 45 ios.set_rdbuf(&sb2); 46 assert(ios.rdbuf() == &sb2); 47 try 48 { 49 ios.setstate(std::ios::badbit); 50 ios.exceptions(std::ios::badbit); 51 } 52 catch (...) 53 { 54 } 55 ios.set_rdbuf(0); 56 assert(ios.rdbuf() == 0); 57 } 58
