*/
template <class _> struct take_class {};
- /** \brief Define 'previous value' slot
+ /** \brief Define MPL slot
- The 'previous value' macros \ref SENF_MPL_PREVV_DEF(), \ref SENF_MPL_PREVV_SET() and \ref
- SENF_MPL_PREVV_GET() provide a facility to get the last unsigned integer value assigned to
+ The slot macros \ref SENF_MPL_SLOT_DEF(), \ref SENF_MPL_SLOT_SET() and \ref
+ SENF_MPL_SLOT_GET() provide a facility to get the last unsigned integer value assigned to
the slot before the current point in the current class.
\code
struct Foo
{
- // Define PREVV slot named 'accum' initialized to 0
- SENF_MPL_PREVV_DEF(accum, 0);
+ // Define SLOT slot named 'accum' initialized to 0
+ SENF_MPL_SLOT_DEF(accum, 0);
// Add 2 to 'accum'
- SENF_MPL_PREVV_SET(accum, SENF_MPL_PREVV_GET(accum) + 2);
+ SENF_MPL_SLOT_SET(accum, SENF_MPL_SLOT_GET(accum) + 2);
// Multiply 'accum' by 3
- SENF_MPL_PREVV_SET(accum, SENF_MPL_PREVV_GET(accum) * 3);
+ SENF_MPL_SLOT_SET(accum, SENF_MPL_SLOT_GET(accum) * 3);
// Define the result as a constant expression. result is now 6
- static unsigned result = SENF_MPL_PREVV_GET(accum);
+ static unsigned result = SENF_MPL_SLOT_GET(accum);
};
\endcode
Of course, it does not make sense to use these macros for simple arithmetic as in the
- example. The SENF_MPL_PREVV macros allow to define macros which pass information from one
+ example. The SENF_MPL_SLOT macros allow to define macros which pass information from one
macro invocation to the next.
\implementation The implementation is based on __LINE__: We check backwards for a value
\ingroup senfmpl
\hideinitializer
*/
-# define SENF_MPL_PREVV_DEF(name,value) \
- template <unsigned _> \
- static senf::mpl::rv<0> _SENF_MPL_PREVV_ ## name (senf::mpl::rv<_> *); \
- SENF_MPL_PREVV_SET(name,value)
+# define SENF_MPL_SLOT_DEF(name,value) \
+ template <class _> \
+ static senf::mpl::rv<0> _SENF_MPL_SLOT_ ## name (_); \
+ SENF_MPL_SLOT_SET(name,value)
- /** \brief Set 'prevision value' slot
- \see \ref SENF_MPL_PREVV_DEF()
+ /** \brief Set MPL slot
+ \see \ref SENF_MPL_SLOT_DEF()
\ingroup senfmpl
\hideinitializer
*/
-# define SENF_MPL_PREVV_SET(name,value) \
- static senf::mpl::rv<unsigned(value)+1> _SENF_MPL_PREVV_ ## name (senf::mpl::rv<__LINE__>*)
+# define SENF_MPL_SLOT_SET(name,value) \
+ static senf::mpl::rv<unsigned(value)+1> \
+ _SENF_MPL_SLOT_ ## name (senf::mpl::take_int<__LINE__>)
- /** \brief Get current 'previous value' slot value
- \see \ref SENF_MPL_PREVV_DEF()
+ /** \brief Get current MPL slot value
+ \see \ref SENF_MPL_SLOT_DEF()
\ingroup senfmpl
\hideinitializer
*/
-# define SENF_MPL_PREVV_GET(name) \
- SENF_MPL_PREVV_I_GET(name)
+# define SENF_MPL_SLOT_GET(name) \
+ SENF_MPL_SLOT_I_GET(name)
}}
--- /dev/null
+// $Id$
+//
+// Copyright (C) 2007
+// Fraunhofer Institut fuer offene Kommunikationssysteme (FOKUS)
+// Kompetenzzentrum fuer Satelitenkommunikation (SatCom)
+// Stefan Bund <g0dil@berlios.de>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the
+// Free Software Foundation, Inc.,
+// 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+/** \file
+ \brief mpl internal header */
+
+#ifndef IH_mpl_
+#define IH_mpl_ 1
+
+// Custom includes
+
+///////////////////////////////ih.p////////////////////////////////////////
+
+#define SENF_MPL_SLOT_I_CHOOSE(a,b) (a != 0 ? a-1 : (b))
+
+#define SENF_MPL_SLOT_I_CHECK(name,a,b) \
+ SENF_MPL_SLOT_I_CHOOSE( \
+ SENF_MPL_RV(_SENF_MPL_SLOT_ ## name (senf::mpl::take_int<(a)>())), \
+ b )
+
+#define SENF_MPL_SLOT_I_GET(name) \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>1?__LINE__-1:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>2?__LINE__-2:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>3?__LINE__-3:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>4?__LINE__-4:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>5?__LINE__-5:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>6?__LINE__-6:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>7?__LINE__-7:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>8?__LINE__-8:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>9?__LINE__-9:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>10?__LINE__-10:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>11?__LINE__-11:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>12?__LINE__-12:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>13?__LINE__-13:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>14?__LINE__-14:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>15?__LINE__-15:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>16?__LINE__-16:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>17?__LINE__-17:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>18?__LINE__-18:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>19?__LINE__-19:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>20?__LINE__-20:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>21?__LINE__-21:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>22?__LINE__-22:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>23?__LINE__-23:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>24?__LINE__-24:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>25?__LINE__-25:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>26?__LINE__-26:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>27?__LINE__-27:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>28?__LINE__-28:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>29?__LINE__-29:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>30?__LINE__-30:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>31?__LINE__-31:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>32?__LINE__-32:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>33?__LINE__-33:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>34?__LINE__-34:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>35?__LINE__-35:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>36?__LINE__-36:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>37?__LINE__-37:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>38?__LINE__-38:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>39?__LINE__-39:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>40?__LINE__-40:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>41?__LINE__-41:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>42?__LINE__-42:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>43?__LINE__-43:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>44?__LINE__-44:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>45?__LINE__-45:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>46?__LINE__-46:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>47?__LINE__-47:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>48?__LINE__-48:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>49?__LINE__-49:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>50?__LINE__-50:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>51?__LINE__-51:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>52?__LINE__-52:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>53?__LINE__-53:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>54?__LINE__-54:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>55?__LINE__-55:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>56?__LINE__-56:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>57?__LINE__-57:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>58?__LINE__-58:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>59?__LINE__-59:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>60?__LINE__-60:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>61?__LINE__-61:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>62?__LINE__-62:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>63?__LINE__-63:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>64?__LINE__-64:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>65?__LINE__-65:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>66?__LINE__-66:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>67?__LINE__-67:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>68?__LINE__-68:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>69?__LINE__-69:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>70?__LINE__-70:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>71?__LINE__-71:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>72?__LINE__-72:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>73?__LINE__-73:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>74?__LINE__-74:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>75?__LINE__-75:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>76?__LINE__-76:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>77?__LINE__-77:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>78?__LINE__-78:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>79?__LINE__-79:0, \
+ SENF_MPL_SLOT_I_CHECK(name, __LINE__>80?__LINE__-80:0, \
+ 0 ))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
+
+
+///////////////////////////////ih.e////////////////////////////////////////
+#endif
+
+\f
+// Local Variables:
+// mode: c++
+// fill-column: 100
+// comment-column: 40
+// c-file-style: "senf"
+// indent-tabs-mode: nil
+// ispell-local-dictionary: "american"
+// compile-command: "scons -u test"
+// End: