folly: replace old-style header guards with "pragma once"

[folly.git] / folly / Preprocessor.h

diff --git a/folly/Preprocessor.h b/folly/Preprocessor.h
index 49bbc7109466f7307ebe46f084af2842d6b6b900..9d098c3de4af43cbc64497dd0bc176f9be092508 100644 (file)
--- a/folly/Preprocessor.h
+++ b/folly/Preprocessor.h
@@ -16,8 +16,7 @@
 
 // @author: Andrei Alexandrescu
 
-#ifndef FOLLY_PREPROCESSOR_
-#define FOLLY_PREPROCESSOR_
+#pragma once
 
 /**
  * Necessarily evil preprocessor-related amenities.
@@ -92,5 +91,3 @@
  * another macro expansion.
  */
 #define FB_STRINGIZE(x) #x
-
-#endif // FOLLY_PREPROCESSOR_