underflow.pass.cpp (657B)
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 // <streambuf> 11 12 // template <class charT, class traits = char_traits<charT> > 13 // class basic_streambuf; 14 15 // int_type underflow(); 16 17 #include <streambuf> 18 #include <cassert> 19 20 struct test 21 : public std::basic_streambuf<char> 22 { 23 test() {} 24 }; 25 26 int main() 27 { 28 test t; 29 assert(t.sgetc() == -1); 30 }