Add explicit keywords.

[oota-llvm.git] / include / llvm / Support / Debug.h

diff --git a/include/llvm/Support/Debug.h b/include/llvm/Support/Debug.h
index 472364ba2fa92ed2ea49f1c2546913172fa08033..8315ce26a5d875f51a35259c2568a7fdbc45141c 100644 (file)
--- a/include/llvm/Support/Debug.h
+++ b/include/llvm/Support/Debug.h
@@ -2,12 +2,12 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
-// This file implements a handle way of adding debugging information to your
+// This file implements a handy way of adding debugging information to your
 // code, without it being enabled all of the time, and without having to add
 // command line options to enable it.
 //
@@ -26,6 +26,8 @@
 #ifndef LLVM_SUPPORT_DEBUG_H
 #define LLVM_SUPPORT_DEBUG_H
 
+#include "llvm/Support/Streams.h"
+
 namespace llvm {
 
 // DebugFlag - This boolean is set to true if the '-debug' command line option
@@ -59,6 +61,18 @@ bool isCurrentDebugType(const char *Type);
   do { if (DebugFlag && isCurrentDebugType(DEBUG_TYPE)) { X; } } while (0)
 #endif
 
+/// getErrorOutputStream - Returns the error output stream (std::cerr). This
+/// places the std::c* I/O streams into one .cpp file and relieves the whole
+/// program from having to have hundreds of static c'tor/d'tors for them.
+/// 
+OStream &getErrorOutputStream(const char *DebugType);
+
+#ifdef NDEBUG
+#define DOUT llvm::OStream(0)
+#else
+#define DOUT llvm::getErrorOutputStream(DEBUG_TYPE)
+#endif
+
 } // End llvm namespace
 
 #endif