From 501093d778258197cb8eec10d31cc9497520e459 Mon Sep 17 00:00:00 2001
From: Jisi Liu <jisi.liu@gmail.com>
Date: Tue, 19 Dec 2017 12:20:13 -0800
Subject: Replace C++11 only method std::map::at

---
 src/google/protobuf/util/field_mask_util.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/google/protobuf/util/field_mask_util.cc b/src/google/protobuf/util/field_mask_util.cc
index 4d0d3a46..8a413498 100644
--- a/src/google/protobuf/util/field_mask_util.cc
+++ b/src/google/protobuf/util/field_mask_util.cc
@@ -374,7 +374,7 @@ void FieldMaskTree::RemovePath(const string& path,
       }
     }
     if (ContainsKey(node->children, parts[i])) {
-      node = node->children.at(parts[i]);
+      node = node->children[parts[i]];
       if (field_descriptor->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE) {
         current_descriptor = field_descriptor->message_type();
       }
-- 
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