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 // <istream> 11 12 // template <class charT, class traits = char_traits<charT> > 13 // class basic_istream; 14 15 // explicit basic_istream(basic_streambuf<charT,traits>* sb); 16 17 #include <istream> 18 #include <cassert> 19 20 template <class CharT> 21 struct testbuf 22 : public std::basic_streambuf<CharT> 23 { 24 testbuf() {} 25 }; 26 27 int main() 28 { 29 { 30 testbuf<char> sb; 31 std::basic_istream<char> is(&sb); 32 assert(is.rdbuf() == &sb); 33 assert(is.tie() == 0); 34 assert(is.fill() == ' '); 35 assert(is.rdstate() == is.goodbit); 36 assert(is.exceptions() == is.goodbit); 37 assert(is.flags() == (is.skipws | is.dec)); 38 assert(is.precision() == 6); 39 assert(is.getloc().name() == "C"); 40 assert(is.gcount() == 0); 41 } 42 { 43 testbuf<wchar_t> sb; 44 std::basic_istream<wchar_t> is(&sb); 45 assert(is.rdbuf() == &sb); 46 assert(is.tie() == 0); 47 assert(is.fill() == L' '); 48 assert(is.rdstate() == is.goodbit); 49 assert(is.exceptions() == is.goodbit); 50 assert(is.flags() == (is.skipws | is.dec)); 51 assert(is.precision() == 6); 52 assert(is.getloc().name() == "C"); 53 assert(is.gcount() == 0); 54 } 55 } 56
