74 lines
3.3 KiB
C
74 lines
3.3 KiB
C
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/****************************************************************************
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* *
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* GNAT COMPILER COMPONENTS *
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* *
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* A D A *
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* *
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* C Header File *
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* *
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* Copyright (C) 1992-2020, Free Software Foundation, Inc. *
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* *
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* GNAT is free software; you can redistribute it and/or modify it under *
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* terms of the GNU General Public License as published by the Free Soft- *
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* ware Foundation; either version 3, or (at your option) any later ver- *
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* sion. GNAT is distributed in the hope that it will be useful, but WITH- *
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* OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
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* for more details. You should have received a copy of the GNU General *
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* Public License distributed with GNAT; see file COPYING3. If not see *
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* <http://www.gnu.org/licenses/>. *
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* *
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* GNAT was originally developed by the GNAT team at New York University. *
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* Extensive contributions were provided by Ada Core Technologies Inc. *
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* *
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****************************************************************************/
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/* This file contains some standard macros for performing Ada-like
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operations. These are used to aid in the translation of other headers. */
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#ifndef GCC_ADA_H
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#define GCC_ADA_H
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/* Inlined functions in header are preceded by INLINE, which is normally set
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to extern inline for GCC, but may be set to static for use in standard
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ANSI-C. */
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#ifndef INLINE
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#ifdef __GNUC__
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#define INLINE static inline
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#else
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#define INLINE static
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#endif
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#endif
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/* Define a macro to concatenate two strings. Write it for ANSI C and
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for traditional C. */
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#ifdef __STDC__
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#define CAT(A,B) A##B
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#else
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#define _ECHO(A) A
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#define CAT(A,B) _ECHO(A)B
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#endif
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/* The following macro definition simulates the effect of a declaration of
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a subtype, where the first two parameters give the name of the type and
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subtype, and the third and fourth parameters give the subtype range. The
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effect is to compile a typedef defining the subtype as a synonym for the
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type, together with two constants defining the end points. */
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#define SUBTYPE(SUBTYPE,TYPE,FIRST,LAST) \
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typedef TYPE SUBTYPE; \
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enum { CAT (SUBTYPE,__First) = FIRST, \
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CAT (SUBTYPE,__Last) = LAST };
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/* The following definition provides the equivalent of the Ada IN operator,
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assuming that the subtype involved has been defined using the SUBTYPE
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macro defined above. */
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#define IN(VALUE,SUBTYPE) \
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(((VALUE) >= (SUBTYPE) CAT (SUBTYPE,__First)) \
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&& ((VALUE) <= (SUBTYPE) CAT (SUBTYPE,__Last)))
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#endif
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