57 lines
1.2 KiB
C++
57 lines
1.2 KiB
C++
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//===----------------------------------------------------------------------===//
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//
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <streambuf>
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// template <class charT, class traits = char_traits<charT> >
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// class basic_streambuf;
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// int_type sbumpc();
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#include <streambuf>
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#include <cassert>
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int uflow_called = 0;
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struct test
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: public std::basic_streambuf<char>
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{
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typedef std::basic_streambuf<char> base;
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test() {}
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void setg(char* gbeg, char* gnext, char* gend)
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{
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base::setg(gbeg, gnext, gend);
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}
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protected:
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int_type uflow()
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{
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++uflow_called;
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return 'a';
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}
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};
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int main()
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{
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{
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test t;
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assert(uflow_called == 0);
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assert(t.sbumpc() == 'a');
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assert(uflow_called == 1);
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char in[] = "ABC";
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t.setg(in, in, in+sizeof(in));
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assert(t.sbumpc() == 'A');
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assert(uflow_called == 1);
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assert(t.sbumpc() == 'B');
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assert(uflow_called == 1);
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}
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}
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