1 /**************************************************************************** 2 * * 3 * GNAT COMPILER COMPONENTS * 4 * * 5 * A D A * 6 * * 7 * C Header File * 8 * * 9 * Copyright (C) 1992-2009, Free Software Foundation, Inc. * 10 * * 11 * GNAT is free software; you can redistribute it and/or modify it under * 12 * terms of the GNU General Public License as published by the Free Soft- * 13 * ware Foundation; either version 3, or (at your option) any later ver- * 14 * sion. GNAT is distributed in the hope that it will be useful, but WITH- * 15 * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * 16 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * 17 * for more details. You should have received a copy of the GNU General * 18 * Public License distributed with GNAT; see file COPYING3. If not see * 19 * <http://www.gnu.org/licenses/>. * 20 * * 21 * GNAT was originally developed by the GNAT team at New York University. * 22 * Extensive contributions were provided by Ada Core Technologies Inc. * 23 * * 24 ****************************************************************************/ 25 26 /* This file contains some standard macros for performing Ada-like 27 operations. These are used to aid in the translation of other headers. */ 28 29 #ifndef GCC_ADA_H 30 #define GCC_ADA_H 31 32 /* Inlined functions in header are preceded by INLINE, which is normally set 33 to extern inline for GCC, but may be set to static for use in standard 34 ANSI-C. */ 35 36 #ifndef INLINE 37 #ifdef __GNUC__ 38 #define INLINE static inline 39 #else 40 #define INLINE static 41 #endif 42 #endif 43 44 /* Define a macro to concatenate two strings. Write it for ANSI C and 45 for traditional C. */ 46 47 #ifdef __STDC__ 48 #define CAT(A,B) A##B 49 #else 50 #define _ECHO(A) A 51 #define CAT(A,B) ECHO(A)B 52 #endif 53 54 /* The following macro definition simulates the effect of a declaration of 55 a subtype, where the first two parameters give the name of the type and 56 subtype, and the third and fourth parameters give the subtype range. The 57 effect is to compile a typedef defining the subtype as a synonym for the 58 type, together with two constants defining the end points. */ 59 60 #define SUBTYPE(SUBTYPE,TYPE,FIRST,LAST) \ 61 typedef TYPE SUBTYPE; \ 62 enum { CAT (SUBTYPE,__First) = FIRST, \ 63 CAT (SUBTYPE,__Last) = LAST }; 64 65 /* The following definition provides the equivalent of the Ada IN operator, 66 assuming that the subtype involved has been defined using the SUBTYPE 67 macro defined above. */ 68 69 #define IN(VALUE,SUBTYPE) \ 70 (((VALUE) >= (SUBTYPE) CAT (SUBTYPE,__First)) \ 71 && ((VALUE) <= (SUBTYPE) CAT (SUBTYPE,__Last))) 72 73 #endif 74