llvm-mirror/include/llvm/Support/raw_os_ostream.h

//===- raw_os_ostream.h - std::ostream adaptor for raw_ostream --*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//  This file defines the raw_os_ostream class.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_SUPPORT_RAW_OS_OSTREAM_H
#define LLVM_SUPPORT_RAW_OS_OSTREAM_H

#include "llvm/Support/raw_ostream.h"
#include <iosfwd>

namespace llvm {

/// raw_os_ostream - A raw_ostream that writes to an std::ostream.  This is a
/// simple adaptor class.  It does not check for output errors; clients should
/// use the underlying stream to detect errors.
class raw_os_ostream : public raw_ostream {
  std::ostream &OS;

  /// write_impl - See raw_ostream::write_impl.
  void write_impl(const char *Ptr, size_t Size) override;

  /// current_pos - Return the current position within the stream, not
  /// counting the bytes currently in the buffer.
  uint64_t current_pos() const override;

public:
  raw_os_ostream(std::ostream &O) : OS(O) {}
  ~raw_os_ostream() override;
};

} // end llvm namespace

#endif