class="mdescLeft">&#160;</td><td class="mdescRight">A <code>capnp::MessageBuilder</code> used by <a class="el" href="classipc_1_1transport_1_1struc_1_1Heap__fixed__builder.html" title="Implements Struct_builder concept by straightforwardly allocating fixed-size segments on-demand in th...">Heap_fixed_builder</a>: similar to a <code>capnp::MallocMessageBuilder</code> with the FIXED_SIZE alloc-strategy but with framing space around the allocated segment(s).  <a href="classipc_1_1transport_1_1struc_1_1Heap__fi