ceph/src/boost/libs/mpl/example/fsm/README.txt

   1 What's In This Directory
   2 ========================
   3
   4 * player1.cpp - this is exactly what's covered in C++ Template
   5   Metaprogramming (http://www.boost-consulting.com/mplbook); in fact,
   6   it was auto-extracted from the examples as shown in the book.  The
   7   state machine framework and its use are together in one .cpp file;
   8   normally they would be separated. You can think of the framework as
   9   ending with the definition of the generate_dispatcher class
  10   template.
  11
  12   You can ignore the typedef called "dummy;" that was included in order to
  13   test an intermediate example that appears in the book.
  14
  15 * player2.cpp - this example demonstrates that the abstraction of the
  16   framework is complete by replacing its implementation with one that
  17   dispatches using O(1) table lookups, while still using the same code
  18   to describe the particular FSM.  Look at this one if you want to see
  19   how to generate a static lookup table that's initialized at dynamic
  20   initialization time.
  21
  22 * player.cpp, state_machine.hpp - This example predates the book, and
  23   is more sophisticated in some ways than what we cover in the other
  24   examples.  In particular, it supports state invariants, and it
  25   maintains an internal event queue, which requires an additional
  26   layer of runtime dispatching to sort out the next event to be
  27   processed.
  28