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 clear(iostate state = goodbit); 15 16 #include <ios> 17 #include <streambuf> 18 #include <cassert> 19 20 struct testbuf : public std::streambuf {}; 21 22 int main() 23 { 24 { 25 std::ios ios(0); 26 ios.clear(); 27 assert(ios.rdstate() == std::ios::badbit); 28 try 29 { 30 ios.exceptions(std::ios::badbit); 31 } 32 catch (...) 33 { 34 } 35 try 36 { 37 ios.clear(); 38 assert(false); 39 } 40 catch (std::ios::failure&) 41 { 42 assert(ios.rdstate() == std::ios::badbit); 43 } 44 try 45 { 46 ios.clear(std::ios::eofbit); 47 assert(false); 48 } 49 catch (std::ios::failure&) 50 { 51 assert(ios.rdstate() == (std::ios::eofbit | std::ios::badbit)); 52 } 53 } 54 { 55 testbuf sb; 56 std::ios ios(&sb); 57 ios.clear(); 58 assert(ios.rdstate() == std::ios::goodbit); 59 ios.exceptions(std::ios::badbit); 60 ios.clear(); 61 assert(ios.rdstate() == std::ios::goodbit); 62 ios.clear(std::ios::eofbit); 63 assert(ios.rdstate() == std::ios::eofbit); 64 } 65 } 66
