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      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 // streamsize showmanyc();
     16 
     17 #include <streambuf>
     18 #include <cassert>
     19 
     20 int showmanyc_called = 0;
     21 
     22 template <class CharT>
     23 struct test
     24     : public std::basic_streambuf<CharT>
     25 {
     26     test() {}
     27 };
     28 
     29 int main()
     30 {
     31     test<char> t;
     32     assert(t.in_avail() == 0);
     33 }
     34