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

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

include/llvm/Support/raw_ostream.h

@@ -15,7 +15,6 @@
 #define LLVM_SUPPORT_RAW_OSTREAM_H
 
 #include "llvm/ADT/StringRef.h"
-#include <iosfwd>
 
 namespace llvm {
   class format_object_base;
@@ -407,24 +406,6 @@ raw_ostream &nulls();
 // Output Stream Adaptors
 //===----------------------------------------------------------------------===//
 
-/// 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();
-};
-
 /// raw_string_ostream - A raw_ostream that writes to an std::string.  This is a
 /// simple adaptor class. This class does not encounter output errors.
 class raw_string_ostream : public raw_ostream {