ada.h   [plain text]

 *                                                                          *
 *                         GNAT COMPILER COMPONENTS                         *
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 *                              C Header File                               *
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/* This file contains some standard macros for performing Ada-like
   operations. These are used to aid in the translation of other headers. */

#ifndef GCC_ADA_H
#define GCC_ADA_H

/* Inlined functions in header are preceded by INLINE, which is normally set
   to extern inline for GCC, but may be set to static for use in standard 
   ANSI-C.  */

#ifndef INLINE
#ifdef __GNUC__
#define INLINE static inline
#define INLINE static

/* Define a macro to concatenate two strings.  Write it for ANSI C and
   for traditional C.  */

#ifdef __STDC__
#define CAT(A,B) A##B
#define _ECHO(A) A
#define CAT(A,B) ECHO(A)B

/* The following macro definition simulates the effect of a declaration of 
   a subtype, where the first two parameters give the name of the type and
   subtype, and the third and fourth parameters give the subtype range. The
   effect is to compile a typedef defining the subtype as a synonym for the 
   type, together with two constants defining the end points.  */

  typedef TYPE SUBTYPE;				\
  enum { CAT (SUBTYPE,__First) = FIRST,		\
         CAT (SUBTYPE,__Last) = LAST };

/* The following definitions provide the equivalent of the Ada IN and NOT IN
   operators, assuming that the subtype involved has been defined using the 
   SUBTYPE macro defined above.  */

  (((VALUE) >= (SUBTYPE) CAT (SUBTYPE,__First)) \
   && ((VALUE) <= (SUBTYPE) CAT (SUBTYPE,__Last)))