1 /****************************************************************************
3 * GNAT COMPILER COMPONENTS *
11 * Copyright (C) 1992-2001 Free Software Foundation, Inc. *
13 * GNAT is free software; you can redistribute it and/or modify it under *
14 * terms of the GNU General Public License as published by the Free Soft- *
15 * ware Foundation; either version 2, or (at your option) any later ver- *
16 * sion. GNAT is distributed in the hope that it will be useful, but WITH- *
17 * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
18 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
19 * for more details. You should have received a copy of the GNU General *
20 * Public License distributed with GNAT; see file COPYING. If not, write *
21 * to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, *
22 * MA 02111-1307, USA. *
24 * As a special exception, if you link this file with other files to *
25 * produce an executable, this file does not by itself cause the resulting *
26 * executable to be covered by the GNU General Public License. This except- *
27 * ion does not however invalidate any other reasons why the executable *
28 * file might be covered by the GNU Public License. *
30 * GNAT was originally developed by the GNAT team at New York University. *
31 * It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). *
33 ****************************************************************************/
35 /* This file contains some standard macros for performing Ada-like
36 operations. These are used to aid in the translation of other headers. */
38 /* Inlined functions in header are preceded by INLINE, which is normally set
39 to extern inline for GCC, but may be set to static for use in standard
44 #define INLINE static inline
50 /* Define a macro to concatenate two strings. Write it for ANSI C and
57 #define CAT(A,B) ECHO(A)B
60 /* The following macro definition simulates the effect of a declaration of
61 a subtype, where the first two parameters give the name of the type and
62 subtype, and the third and fourth parameters give the subtype range. The
63 effect is to compile a typedef defining the subtype as a synonym for the
64 type, together with two constants defining the end points. */
66 #define SUBTYPE(SUBTYPE,TYPE,FIRST,LAST) \
67 typedef TYPE SUBTYPE; \
68 static const SUBTYPE CAT (SUBTYPE,__First) = FIRST; \
69 static const SUBTYPE CAT (SUBTYPE,__Last) = LAST;
71 /* The following definitions provide the equivalent of the Ada IN and NOT IN
72 operators, assuming that the subtype involved has been defined using the
73 SUBTYPE macro defined above. */
75 #define IN(VALUE,SUBTYPE) \
76 (((VALUE) >= CAT (SUBTYPE,__First)) && ((VALUE) <= CAT (SUBTYPE,__Last)))