From 52883e7a9a637c0d6dea091917090a8ac63e7736 Mon Sep 17 00:00:00 2001
From: Bill Wendling <isanbard@gmail.com>
Date: Fri, 17 Nov 2006 09:52:49 +0000
Subject: Used llvm_ostream instead of std::ostream objects. This will reduce
 use of the icky <iostream> class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31818 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Support/Casting.h        |  6 +++---
 include/llvm/Support/Debug.h          | 20 +-------------------
 include/llvm/Support/GraphWriter.h    | 14 +++++++-------
 include/llvm/Support/PassNameParser.h |  4 ++--
 4 files changed, 13 insertions(+), 31 deletions(-)

diff --git a/include/llvm/Support/Casting.h b/include/llvm/Support/Casting.h
index 6630fa955d..fff44f6e64 100644
--- a/include/llvm/Support/Casting.h
+++ b/include/llvm/Support/Casting.h
@@ -235,7 +235,7 @@ inline typename cast_retty<X, Y>::ret_type dyn_cast_or_null(Y Val) {
 
 
 #ifdef DEBUG_CAST_OPERATORS
-#include <iostream>
+#include "llvm/Support/Debug.h"
 
 struct bar {
   bar() {}
@@ -245,13 +245,13 @@ private:
 struct foo {
   void ext() const;
   /*  static bool classof(const bar *X) {
-    cerr << "Classof: " << X << "\n";
+    llvm_cerr << "Classof: " << X << "\n";
     return true;
     }*/
 };
 
 template <> inline bool isa_impl<foo,bar>(const bar &Val) {
-  cerr << "Classof: " << &Val << "\n";
+  llvm_cerr << "Classof: " << &Val << "\n";
   return true;
 }
 
diff --git a/include/llvm/Support/Debug.h b/include/llvm/Support/Debug.h
index cedb50dcd2..9f0f1611d7 100644
--- a/include/llvm/Support/Debug.h
+++ b/include/llvm/Support/Debug.h
@@ -26,7 +26,7 @@
 #ifndef LLVM_SUPPORT_DEBUG_H
 #define LLVM_SUPPORT_DEBUG_H
 
-#include <ostream>              // Doesn't have static d'tors!!
+#include "llvm/Support/Streams.h"
 
 namespace llvm {
 
@@ -61,24 +61,6 @@ bool isCurrentDebugType(const char *Type);
   do { if (DebugFlag && isCurrentDebugType(DEBUG_TYPE)) { X; } } while (0)
 #endif
 
-/// llvm_ostream - Acts like an ostream. However, it doesn't print things out if
-/// an ostream isn't specified.
-/// 
-class llvm_ostream {
-  std::ostream* Stream;
-public:
-  llvm_ostream() : Stream(0) {}
-  llvm_ostream(std::ostream& OStream) : Stream(&OStream) {}
-
-  template <typename Ty>
-  llvm_ostream& operator << (const Ty& Thing) {
-#ifndef NDEBUG
-    if (Stream) *Stream << Thing;
-#endif
-    return *this;
-  }
-};
-
 /// 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.
diff --git a/include/llvm/Support/GraphWriter.h b/include/llvm/Support/GraphWriter.h
index b4e6d845e6..8602e74c14 100644
--- a/include/llvm/Support/GraphWriter.h
+++ b/include/llvm/Support/GraphWriter.h
@@ -23,12 +23,12 @@
 #ifndef LLVM_SUPPORT_GRAPHWRITER_H
 #define LLVM_SUPPORT_GRAPHWRITER_H
 
+#include "llvm/Support/Debug.h"
 #include "llvm/Support/DOTGraphTraits.h"
 #include "llvm/ADT/GraphTraits.h"
 #include "llvm/System/Path.h"
-#include <vector>
-#include <iostream>
 #include <fstream>
+#include <vector>
 
 namespace llvm {
 
@@ -247,16 +247,16 @@ sys::Path WriteGraph(const GraphType &G,
   std::string ErrMsg;
   sys::Path Filename = sys::Path::GetTemporaryDirectory(&ErrMsg);
   if (Filename.isEmpty()) {
-    std::cerr << "Error: " << ErrMsg << "\n";
+    llvm_cerr << "Error: " << ErrMsg << "\n";
     return Filename;
   }
   Filename.appendComponent(Name + ".dot");
   if (Filename.makeUnique(true,&ErrMsg)) {
-    std::cerr << "Error: " << ErrMsg << "\n";
+    llvm_cerr << "Error: " << ErrMsg << "\n";
     return sys::Path();
   }
 
-  std::cerr << "Writing '" << Filename << "'... ";
+  llvm_cerr << "Writing '" << Filename << "'... ";
   
   std::ofstream O(Filename.c_str());
 
@@ -275,12 +275,12 @@ sys::Path WriteGraph(const GraphType &G,
 
     // Output the end of the graph
     W.writeFooter();
-    std::cerr << " done. \n";
+    llvm_cerr << " done. \n";
 
     O.close();
     
   } else {
-    std::cerr << "error opening file for writing!\n";
+    llvm_cerr << "error opening file for writing!\n";
     Filename.clear();
   }
   
diff --git a/include/llvm/Support/PassNameParser.h b/include/llvm/Support/PassNameParser.h
index 5fa67d362c..c3d4901700 100644
--- a/include/llvm/Support/PassNameParser.h
+++ b/include/llvm/Support/PassNameParser.h
@@ -24,9 +24,9 @@
 #define LLVM_SUPPORT_PASS_NAME_PARSER_H
 
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Debug.h"
 #include "llvm/Pass.h"
 #include <algorithm>
-#include <iostream>
 
 namespace llvm {
 
@@ -66,7 +66,7 @@ public:
   virtual void passRegistered(const PassInfo *P) {
     if (ignorablePass(P) || !Opt) return;
     if (findOption(P->getPassArgument()) != getNumOptions()) {
-      std::cerr << "Two passes with the same argument (-"
+      llvm_cerr << "Two passes with the same argument (-"
                 << P->getPassArgument() << ") attempted to be registered!\n";
       abort();
     }
-- 
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