1 /****************************************************************************
3 * GNAT COMPILER COMPONENTS *
10 * Copyright (C) 1992-2001 Free Software Foundation, Inc. *
12 * GNAT is free software; you can redistribute it and/or modify it under *
13 * terms of the GNU General Public License as published by the Free Soft- *
14 * ware Foundation; either version 2, or (at your option) any later ver- *
15 * sion. GNAT is distributed in the hope that it will be useful, but WITH- *
16 * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
17 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
18 * for more details. You should have received a copy of the GNU General *
19 * Public License distributed with GNAT; see file COPYING. If not, write *
20 * to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, *
21 * MA 02111-1307, USA. *
23 * As a special exception, if you link this file with other files to *
24 * produce an executable, this file does not by itself cause the resulting *
25 * executable to be covered by the GNU General Public License. This except- *
26 * ion does not however invalidate any other reasons why the executable *
27 * file might be covered by the GNU Public License. *
29 * GNAT was originally developed by the GNAT team at New York University. *
30 * It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). *
32 ****************************************************************************/
34 /* This file contains some standard macros for performing Ada-like
35 operations. These are used to aid in the translation of other headers. */
37 /* Inlined functions in header are preceded by INLINE, which is normally set
38 to extern inline for GCC, but may be set to static for use in standard
43 #define INLINE static inline
49 /* Define a macro to concatenate two strings. Write it for ANSI C and
56 #define CAT(A,B) ECHO(A)B
59 /* The following macro definition simulates the effect of a declaration of
60 a subtype, where the first two parameters give the name of the type and
61 subtype, and the third and fourth parameters give the subtype range. The
62 effect is to compile a typedef defining the subtype as a synonym for the
63 type, together with two constants defining the end points. */
65 #define SUBTYPE(SUBTYPE,TYPE,FIRST,LAST) \
66 typedef TYPE SUBTYPE; \
67 static const SUBTYPE CAT (SUBTYPE,__First) = FIRST; \
68 static const SUBTYPE CAT (SUBTYPE,__Last) = LAST;
70 /* The following definitions provide the equivalent of the Ada IN and NOT IN
71 operators, assuming that the subtype involved has been defined using the
72 SUBTYPE macro defined above. */
74 #define IN(VALUE,SUBTYPE) \
75 (((VALUE) >= CAT (SUBTYPE,__First)) && ((VALUE) <= CAT (SUBTYPE,__Last)))