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 #include "test_macros.h" 21 22 struct testbuf 23 : public std::streambuf 24 { 25 }; 26 27 struct testios 28 : public std::ios 29 { 30 testios(std::streambuf* p) : std::ios(p) {} 31 void set_rdbuf(std::streambuf* x) {std::ios::set_rdbuf(x);} 32 }; 33 34 int main() 35 { 36 testbuf sb1; 37 testbuf sb2; 38 testios ios(&sb1); 39 #ifndef TEST_HAS_NO_EXCEPTIONS 40 try 41 { 42 ios.setstate(std::ios::badbit); 43 ios.exceptions(std::ios::badbit); 44 assert(false); 45 } 46 catch (...) 47 { 48 } 49 #endif 50 ios.set_rdbuf(&sb2); 51 assert(ios.rdbuf() == &sb2); 52 #ifndef TEST_HAS_NO_EXCEPTIONS 53 try 54 { 55 ios.setstate(std::ios::badbit); 56 ios.exceptions(std::ios::badbit); 57 } 58 catch (...) 59 { 60 } 61 #endif 62 ios.set_rdbuf(0); 63 assert(ios.rdbuf() == 0); 64 } 65
