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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <streambuf>
// template <class charT, class traits = char_traits<charT> >
// class basic_streambuf;
// streamsize sputn(const char_type* s, streamsize n);
#include <streambuf>
#include <cassert>
int xsputn_called = 0;
struct test
: public std::basic_streambuf<char>
{
test() {}
protected:
std::streamsize xsputn(const char_type* s, std::streamsize n)
{
++xsputn_called;
return 5;
}
};
int main()
{
test t;
assert(xsputn_called == 0);
assert(t.sputn(0, 0) == 5);
assert(xsputn_called == 1);
}
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