One last RandomAccessIterator operator for PreprocessingRecord::iterator

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135680 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 0 deletions

diff --git a/include/clang/Lex/PreprocessingRecord.h b/include/clang/Lex/PreprocessingRecord.h
index 22ac57152f..f454ca96ca 100644
--- a/include/clang/Lex/PreprocessingRecord.h
+++ b/include/clang/Lex/PreprocessingRecord.h
@@ -419,6 +419,11 @@ namespace clang {
       friend difference_type operator-(const iterator &X, const iterator &Y) {
         return X.Position - Y.Position;
       }
+
+      friend iterator operator-(iterator X, difference_type D) {
+        X.Position -= D;
+        return X;
+      }
     };
     friend class iterator;