DOC: A few comments in code.

include/caosdb/entity.h

@@ -348,6 +348,9 @@ private:
   inline Messages() : RepeatedPtrFieldWrapper(){};
 };
 
+///////////////////////////////////////////////////////////////////////////////
+// class Parent ///////////////////////////////////////////////////////////////
+
 /**
  * Parent of an Entity.
  *
@@ -436,6 +439,9 @@ private:
     : RepeatedPtrFieldWrapper(wrapped){};
 };
 
+///////////////////////////////////////////////////////////////////////////////
+// class Property /////////////////////////////////////////////////////////////
+
 /**
  * Property of an Entity.
  *
@@ -615,6 +621,9 @@ private:
     : RepeatedPtrFieldWrapper<Property, ProtoProperty>(wrapped){};
 };
 
+///////////////////////////////////////////////////////////////////////////////
+// class Entity ///////////////////////////////////////////////////////////////
+
 /**
  * Entity is the central and basic data object of CaosDB.
  *

src/caosdb/file_transmission/file_reader.cpp

@@ -79,7 +79,7 @@ std::size_t FileReader::read(std::string &buffer) {
     if (bufferSize > 0) {
       // TODO(henrik): fix nolint
       if (!stream_.read(&buffer[0], bufferSize)) { // NOLINT
-        throw FileIOError("Can't read file: " + filename_.string());
+        throw FileIOError("Can't read data from file: " + filename_.string());
       }
 
       bytesRead = static_cast<std::size_t>(stream_.gcount());

src/caosdb/transaction.cpp

@@ -344,7 +344,7 @@ auto Transaction::WaitForIt() const noexcept -> TransactionStatus { // NOLINT
     default:
       CAOSDB_LOG_FATAL(logger_name) << "Received invalid TransactionResponseCase.";
       break;
-    }
+    } // default to sub_response.transaction_response_case()
     if (result != nullptr) {
       if (result->HasErrors()) {
         set_error = true;