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.. _faq:
Frequently Asked Questions
==========================
This Section is a compilation of the most common questions via GitHub, chat,
and mailing list.
Can I Encrypt CAF Communication?
--------------------------------
Yes, by using the OpenSSL module (see :ref:`free-remoting-functions`).
Can I Create Messages Dynamically?
----------------------------------
Yes.
Usually, messages are created implicitly when sending messages but can also be
created explicitly using ``make_message``. In both cases, types and number of
elements are known at compile time. To allow for fully dynamic message
generation, CAF also offers ``message_builder``:
.. code-block:: C++
message_builder mb;
// prefix message with some atom
mb.append(strings_atom::value);
// fill message with some strings
std::vector<std::string> strings{/*...*/};
for (auto& str : strings)
mb.append(str);
// create the message
message msg = mb.to_message();
What Debugging Tools Exist?
---------------------------
The ``scripts/`` directory contains some useful tools to aid in analyzing CAF
log output.
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