~

c++/protobuf/CMakeLists.txt

@@ -4,6 +4,7 @@ project (test_0)
 
 set(CMAKE_BUILD_TYPE Release)
 
+# !!! -pthread: Protobuf needs this !!!
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} --std=c++11 -pthread")
 
 set(protobuf_include_dir "/home/songxinkai/protobuf-3.11.2/src")

c++/protobuf/test_0.cpp

@@ -29,7 +29,7 @@ int main(){
   cout << "2" << endl;
   google::protobuf::TextFormat::ParseFromString(conf_ss.str(), &Pigs);
   cout << "3" << endl;
-  cout << Pigs.count() << endl;
+  cout << Pigs.count() << ", " << Pigs.sight() << ", " << endl;
 
   return 0;
 }