Added boost header

test/external/boost/msm/front/states.hpp

@@ -0,0 +1,128 @@
+// Copyright 2008 Christophe Henry
+// henry UNDERSCORE christophe AT hotmail DOT com
+// This is an extended version of the state machine available in the boost::mpl library
+// Distributed under the same license as the original.
+// Copyright for the original version:
+// Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed
+// under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef BOOST_MSM_FRONT_STATES_H
+#define BOOST_MSM_FRONT_STATES_H
+
+#include <boost/mpl/bool.hpp>
+#include <boost/mpl/vector.hpp>
+#include <boost/msm/front/common_states.hpp>
+#include <boost/msm/row_tags.hpp>
+
+namespace boost { namespace msm { namespace front
+{
+
+struct no_sm_ptr 
+{
+    // tags
+    typedef ::boost::mpl::bool_<false>   needs_sm;
+};
+struct sm_ptr 
+{
+    // tags
+    typedef ::boost::mpl::bool_<true>    needs_sm;
+};
+// kept for backward compatibility
+struct NoSMPtr 
+{
+    // tags
+    typedef ::boost::mpl::bool_<false>   needs_sm;
+};
+struct SMPtr 
+{
+    // tags
+    typedef ::boost::mpl::bool_<true>    needs_sm;
+};
+
+// provides the typedefs and interface. Concrete states derive from it.
+// template argument: pointer-to-fsm policy
+template<class BASE = default_base_state,class SMPtrPolicy = no_sm_ptr>
+struct state :  public boost::msm::front::detail::state_base<BASE>, SMPtrPolicy
+{
+    // tags
+    // default: no flag
+    typedef ::boost::mpl::vector0<>       flag_list;
+    //default: no deferred events
+    typedef ::boost::mpl::vector0<>       deferred_events;
+};
+
+// terminate state simply defines the TerminateFlag flag
+// template argument: pointer-to-fsm policy
+template<class BASE = default_base_state,class SMPtrPolicy = no_sm_ptr>
+struct terminate_state : public boost::msm::front::detail::state_base<BASE>, SMPtrPolicy
+{
+    // tags
+    typedef ::boost::mpl::vector<boost::msm::TerminateFlag>      flag_list;
+    //default: no deferred events
+    typedef ::boost::mpl::vector0<>                               deferred_events;
+};
+
+// terminate state simply defines the InterruptedFlag and EndInterruptFlag<EndInterruptEvent> flags
+// template argument: event which ends the interrupt
+// template argument: pointer-to-fsm policy
+template <class EndInterruptEvent,class BASE = default_base_state,class SMPtrPolicy = no_sm_ptr>
+struct interrupt_state : public boost::msm::front::detail::state_base<BASE>, SMPtrPolicy
+{
+    // tags
+    typedef ::boost::mpl::vector<boost::msm::InterruptedFlag,
+        boost::msm::EndInterruptFlag<EndInterruptEvent> >       
+        flag_list;
+    //default: no deferred events
+    typedef ::boost::mpl::vector0<>                           deferred_events;
+};
+
+// not a state but a bunch of extra typedefs to handle direct entry into a composite state. To be derived from
+// template argument: zone index of this state
+template <int ZoneIndex=-1>
+struct explicit_entry 
+{
+    typedef int explicit_entry_state;
+    enum {zone_index=ZoneIndex};
+};
+
+// to be derived from. Makes a type an entry (pseudo) state. Actually an almost full-fledged state
+// template argument: containing composite
+// template argument: zone index of this state
+// template argument: pointer-to-fsm policy
+template<int ZoneIndex=-1,class BASE = default_base_state,class SMPtrPolicy = no_sm_ptr>
+struct entry_pseudo_state
+    :  public boost::msm::front::detail::state_base<BASE>,SMPtrPolicy
+{
+    // tags
+    typedef int                          pseudo_entry;
+    enum {zone_index=ZoneIndex};
+    typedef int explicit_entry_state;
+    // default: no flag
+    typedef ::boost::mpl::vector0<>       flag_list;
+    //default: no deferred events
+    typedef ::boost::mpl::vector0<>       deferred_events;
+};
+
+// to be derived from. Makes a state an exit (pseudo) state. Actually an almost full-fledged state
+// template argument: event to forward
+// template argument: pointer-to-fsm policy
+template<class Event,class BASE = default_base_state,class SMPtrPolicy = no_sm_ptr>
+struct exit_pseudo_state : public boost::msm::front::detail::state_base<BASE> , SMPtrPolicy
+{
+    typedef Event       event;
+    typedef BASE        Base;
+    typedef SMPtrPolicy PtrPolicy;
+    typedef int         pseudo_exit;
+
+    // default: no flag
+    typedef ::boost::mpl::vector< > flag_list;
+    //default: no deferred events
+    typedef ::boost::mpl::vector0<>  deferred_events;
+};
+
+}}}
+
+#endif //BOOST_MSM_FRONT_STATES_H
+