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

[folly.git] / folly / stats / Histogram-defs.h

diff --git a/folly/stats/Histogram-defs.h b/folly/stats/Histogram-defs.h
index fe102bf2c5558f86ac19312719eb4b374eb2a508..8d4af44fd48062b689dab41fa54c14ec3b4eb38d 100644 (file)
--- a/folly/stats/Histogram-defs.h
+++ b/folly/stats/Histogram-defs.h
@@ -14,8 +14,7 @@
  * limitations under the License.
  */
 
-#ifndef FOLLY_HISTOGRAM_DEFS_H_
-#define FOLLY_HISTOGRAM_DEFS_H_
+#pragma once
 
 #include <folly/Conv.h>
 
@@ -278,5 +277,3 @@ void Histogram<T>::toTSV(std::ostream& out, bool skipEmptyBuckets) const {
 }
 
 } // folly
-
-#endif // FOLLY_HISTOGRAM_DEFS_H_