forked from mirror/libcxx
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
1.2 KiB
C++
59 lines
1.2 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <ostream>
|
|
|
|
// template <class charT, class traits = char_traits<charT> >
|
|
// class basic_ostream;
|
|
|
|
// template <class charT, class traits>
|
|
// basic_ostream<charT,traits>& flush(basic_ostream<charT,traits>& os);
|
|
|
|
#include <ostream>
|
|
#include <cassert>
|
|
|
|
int sync_called = 0;
|
|
|
|
template <class CharT>
|
|
class testbuf
|
|
: public std::basic_streambuf<CharT>
|
|
{
|
|
public:
|
|
testbuf()
|
|
{
|
|
}
|
|
|
|
protected:
|
|
|
|
virtual int
|
|
sync()
|
|
{
|
|
++sync_called;
|
|
return 0;
|
|
}
|
|
};
|
|
|
|
int main()
|
|
{
|
|
{
|
|
testbuf<char> sb;
|
|
std::ostream os(&sb);
|
|
flush(os);
|
|
assert(sync_called == 1);
|
|
assert(os.good());
|
|
}
|
|
{
|
|
testbuf<wchar_t> sb;
|
|
std::wostream os(&sb);
|
|
flush(os);
|
|
assert(sync_called == 2);
|
|
assert(os.good());
|
|
}
|
|
}
|