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 // basic_istream<charT,traits>&
13 //    ignore(streamsize n = 1, int_type delim = traits::eof());
14 
15 // http://llvm.org/bugs/show_bug.cgi?id=16427
16 
17 #include <sstream>
18 #include <cassert>
19 
main()20 int main()
21 {
22     int bad=-1;
23     std::ostringstream os;
24     os << "aaaabbbb" << static_cast<char>(bad)
25        << "ccccdddd" << std::endl;
26     std::string s=os.str();
27 
28     std::istringstream is(s);
29     const unsigned int ignoreLen=10;
30     size_t a=is.tellg();
31     is.ignore(ignoreLen);
32     size_t b=is.tellg();
33     assert((b-a)==ignoreLen);
34 }
35