split raw_os_ostream out to its own header and implementation file. This

means that raw_ostream no longer has to #include <iosfwd>.  Nothing in llvm
should use raw_os_ostream.h, but llvm-gcc and some unit tests do.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79886 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 42 insertions, 0 deletions

diff --git a/include/llvm/Support/raw_os_ostream.h b/include/llvm/Support/raw_os_ostream.h
new file mode 100644
index 0000000..e0978b2
--- /dev/null
+++ b/include/llvm/Support/raw_os_ostream.h
@@ -0,0 +1,42 @@
+//===- 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.
+  virtual void write_impl(const char *Ptr, size_t Size);
+  
+  /// current_pos - Return the current position within the stream, not
+  /// counting the bytes currently in the buffer.
+  virtual uint64_t current_pos();
+  
+public:
+  raw_os_ostream(std::ostream &O) : OS(O) {}
+  ~raw_os_ostream();
+};
+
+} // end llvm namespace
+
+#endif