commit 095737413fe59e5220d220c5aaef3c83a20ff794
author Daniel Jasper <djasper@google.com> Wed Jul 03 12:22:18 2013 +0000
committer Daniel Jasper <djasper@google.com> Wed Jul 03 12:22:18 2013 +0000
tree bf9d15d7ab3c4584d9fcf9d0b124d4a9a6e6ede9
parent 7ae41cdd2264a8785ea53a997cd0bbb5b881e570

Prevent error message when formatting an empty file.

This fixes llvm.org/PR16514.

llvm-svn: 185531

clang/tools/clang-format/ClangFormat.cpp

diff --git a/clang/tools/clang-format/ClangFormat.cpp b/clang/tools/clang-format/ClangFormat.cpp
index 33b7be9..2aa4325 100644
--- a/clang/tools/clang-format/ClangFormat.cpp
+++ b/clang/tools/clang-format/ClangFormat.cpp
@@ -162,6 +162,8 @@
     llvm::errs() << ec.message() << "\n";
     return true;
   }
+  if (Code->getBufferSize() == 0)
+    return true; // Empty files are formatted correctly.
   FileID ID = createInMemoryFile(FileName, Code.get(), Sources, Files);
   if (Offsets.empty())
     Offsets.push_back(0);