generique.h

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#ifndef generique_inclus
 
#define generique_inclus
 
/* macros to paste tokens together to form new names */
/* 4.2BSD and System V cpp's have different mechanisms for
   pasting tokens together, but 4.3BSD agrees with System V.
   ANSI C has defined a new way.
*/
 
#if defined(__STDC__) || defined (__STDCPP__) || defined (MICROSOFT)
/* ANSI C preprocessors will not expand the arguments to a macro;
 * so we need to add a level of indirection to allow macro expansion of
 * arguments.  (Reiser preprocessors allowed the first arg to be expanded;
 * this method will allow both to be expanded, which is better than none.)
 */
#define name2(a,b)      _name2_aux(a,b)
#define _name2_aux(a,b)      a##b
#define name3(a,b,c)    _name3_aux(a,b,c)
#define _name3_aux(a,b,c)    a##b##c
#define name4(a,b,c,d)  _name4_aux(a,b,c,d)
#define _name4_aux(a,b,c,d)  a##b##c##d
 
#else
 
#ifdef pyr
/*
 * Pyramid run SVR3, but its cpp uses the BSD4.2 version of argument pasting
 */
#define name2(a,b) a                                \
  b
#define name3(a,b,c) a                                \
  b                                                \
  c
#define name4(a,b,c,d) a                        \
  b                                                \
  c                                                \
  d
#else
/*
 * Most non-ANSI cpps use the "null comment" method
 */
#define name2(a,b)        a/**/b
#define name3(a,b,c)        a/**/b/**/c
#define name4(a,b,c,d)        a/**/b/**/c/**/d
#endif
 
#endif
 
#define declare(a,t) name2(declare_,a)(t)
#define implemente(a,t) name2(implemente_,a)(t)
 
// GF nouvelle macro pour fabriquer des vrais noms pour les listes, les Deriv, les Ref,
#ifdef _COMPILE_AVEC_GCC_
#define string_macro_trio(a,b) _inter_name(b)
#define _inter_name(a) #a
#else
#define string_macro_trio(a,b) a
#endif
#endif