1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // <ios> 10 11 // template <class charT, class traits> class basic_ios 12 13 // void set_rdbuf(basic_streambuf<charT, traits>* sb); 14 15 #include <ios> 16 #include <streambuf> 17 #include <cassert> 18 19 #include "test_macros.h" 20 21 struct testbuf 22 : public std::streambuf 23 { 24 }; 25 26 struct testios 27 : public std::ios 28 { testiostestios29 testios(std::streambuf* p) : std::ios(p) {} set_rdbuftestios30 void set_rdbuf(std::streambuf* x) {std::ios::set_rdbuf(x);} 31 }; 32 main(int,char **)33int main(int, char**) 34 { 35 testbuf sb1; 36 testbuf sb2; 37 testios ios(&sb1); 38 #ifndef TEST_HAS_NO_EXCEPTIONS 39 try 40 { 41 ios.setstate(std::ios::badbit); 42 ios.exceptions(std::ios::badbit); 43 assert(false); 44 } 45 catch (...) 46 { 47 } 48 #endif 49 ios.set_rdbuf(&sb2); 50 assert(ios.rdbuf() == &sb2); 51 #ifndef TEST_HAS_NO_EXCEPTIONS 52 try 53 { 54 ios.setstate(std::ios::badbit); 55 ios.exceptions(std::ios::badbit); 56 } 57 catch (...) 58 { 59 } 60 #endif 61 ios.set_rdbuf(0); 62 assert(ios.rdbuf() == 0); 63 64 return 0; 65 } 66