not recognised and BOOST_TYPE_INDEX_FUNCTION_SIGNATURE is not defined, then a compile-time error will arise at any attempt to use <a class="link" href="boost/typeindex/ctti_type_index.html" title="Class ctti_type_index">boost::typeindex::ctti_type_index</a> classes.</p>
<p>See BOOST_TYPE_INDEX_REGISTER_CTTI_PARSING_PARAMS and BOOST_TYPE_INDEX_CTTI_USER_DEFINED_PARSING for an information of how to tune the implementation to make a nice pretty_name() output. </p>
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