Call reserve() before push_back().

PiperOrigin-RevId: 436318676
3 years ago · b25e7218ef
parent e80ac6df59
commit b25e7218ef
1 changed files with 1 additions and 0 deletions
--- a/upbc/protoc-gen-upb.cc
+++ b/upbc/protoc-gen-upb.cc
@ -97,6 +97,7 @@ const char* kMessagesInit = "messages_layout";

 void AddEnums(const protobuf::Descriptor* message,
              std::vector<const protobuf::EnumDescriptor*>* enums) {
+  enums->reserve(enums->size() + message->enum_type_count());
  for (int i = 0; i < message->enum_type_count(); i++) {
    enums->push_back(message->enum_type(i));
  }