greenplumn COstreamBasic 源码
greenplumn COstreamBasic 代码
文件路径：/src/backend/gporca/libgpos/include/gpos/io/COstreamBasic.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2008 - 2010 Greenplum, Inc.
//
// @filename:
// COstreamBasic.h
//
// @doc:
// Output stream base class;
//---------------------------------------------------------------------------
#ifndef GPOS_COstreamBasic_H
#define GPOS_COstreamBasic_H
#include "gpos/io/COstream.h"
namespace gpos
{
//---------------------------------------------------------------------------
// @class:
// COstreamBasic
//
// @doc:
// Implements a basic write thru interface over a std::WOSTREAM
//
//---------------------------------------------------------------------------
class COstreamBasic : public COstream
{
private:
// underlying stream
WOSTREAM *m_ostream;
public:
COstreamBasic(const COstreamBasic &) = delete;
// please see comments in COstream.h for an explanation
using COstream::operator<<;
// ctor
explicit COstreamBasic(WOSTREAM *ostream);
~COstreamBasic() override = default;
// implement << operator
IOstream &operator<<(const WCHAR *) override;
// implement << operator
IOstream &operator<<(const WCHAR) override;
};
} // namespace gpos
#endif // !GPOS_COstreamBasic_H
// EOF
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