[Support] Promote cl::StringSaver to a separate utility

[oota-llvm.git] / lib / Support / DataStream.cpp

diff --git a/lib/Support/DataStream.cpp b/lib/Support/DataStream.cpp
index 1caeddfe24a2eb7263d03034a93d49f5df09ceec..32653de5194383549de9bb6b88b427383cca9f1f 100644 (file)
--- a/lib/Support/DataStream.cpp
+++ b/lib/Support/DataStream.cpp
@@ -14,15 +14,14 @@
 //
 //===----------------------------------------------------------------------===//
 
-#define DEBUG_TYPE "Data-stream"
 #include "llvm/Support/DataStream.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/Program.h"
-#include "llvm/Support/system_error.h"
 #include <cerrno>
 #include <cstdio>
 #include <string>
+#include <system_error>
 #if !defined(_MSC_VER) && !defined(__MINGW32__)
 #include <unistd.h>
 #else
@@ -30,6 +29,8 @@
 #endif
 using namespace llvm;
 
+#define DEBUG_TYPE "Data-stream"
+
 // Interface goals:
 // * StreamableMemoryObject doesn't care about complexities like using
 //   threads/async callbacks to actually overlap download+compile
@@ -63,11 +64,11 @@ public:
     return read(Fd, buf, len);
   }
 
-  error_code OpenFile(const std::string &Filename) {
+  std::error_code OpenFile(const std::string &Filename) {
     if (Filename == "-") {
       Fd = 0;
       sys::ChangeStdinToBinary();
-      return error_code::success();
+      return std::error_code();
     }
 
     return sys::fs::openFileForRead(Filename, Fd);
@@ -80,10 +81,10 @@ namespace llvm {
 DataStreamer *getDataFileStreamer(const std::string &Filename,
                                   std::string *StrError) {
   DataFileStreamer *s = new DataFileStreamer();
-  if (error_code e = s->OpenFile(Filename)) {
+  if (std::error_code e = s->OpenFile(Filename)) {
     *StrError = std::string("Could not open ") + Filename + ": " +
         e.message() + "\n";
-    return NULL;
+    return nullptr;
   }
   return s;
 }