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/****************************************************************************/
/* */
/* GNAT COMPILER COMPONENTS */
/* */
/* A - U I N T P */
/* */
/* C Header File */
/* */
/* $Revision: 1.19 $ */
/* */
/* Copyright (C) 1992,1993,1994,1995,1996 Free Software Foundation, Inc. */
/* */
/* GNAT is free software; you can redistribute it and/or modify it under */
/* terms of the GNU General Public License as published by the Free Soft- */
/* ware Foundation; either version 2, or (at your option) any later ver- */
/* sion. GNAT is distributed in the hope that it will be useful, but WITH- */
/* OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY */
/* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License */
/* for more details. You should have received a copy of the GNU General */
/* Public License distributed with GNAT; see file COPYING. If not, write */
/* to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, */
/* MA 02111-1307, USA. */
/* */
/* GNAT was originally developed by the GNAT team at New York University. */
/* It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). */
/* */
/****************************************************************************/
/* This file corresponds to the Ada package specification Uintp. It was
created manually from the files uintp.ads and uintp.adb */
/* Support for universal integer arithmetic */
struct Uint_Entry
{
Pos Length;
Int Loc;
};
/* See if a Uint is within the range of an integer. */
#define UI_Is_In_Int_Range uintp__ui_is_in_int_range
extern Boolean UI_Is_In_Int_Range PROTO((Uint));
/* Obtain Int value from Uint input. This will abort if the result is
out of range. */
#define UI_To_Int uintp__ui_to_int
extern Int UI_To_Int PROTO((Uint));
/* Convert an Int into a Uint. */
#define UI_From_Int uintp__ui_from_int
extern Uint UI_From_Int PROTO((int));
#ifdef TREE_CODE /* Don't lose if tree.h not included. */
/* Similarly, but return a GCC INTEGER_CST. Overflow is tested by the
constant-folding used to build the node. TYPE is the GCC type of the
resulting node. */
extern tree UI_To_gnu PROTO((Uint, tree));
#endif
/* Universal integers are represented by the Uint type which is an index into
the Uints_Ptr table containing Uint_Entry values. A Uint_Entry contains an
index and length for getting the "digits" of the universal integer from the
Udigits_Ptr table.
For efficiency, this method is used only for integer values larger than the
constant Uint_Bias. If a Uint is less than this constant, then it contains
the integer value itself. The origin of the Uints_Ptr table is adjusted so
that a Uint value of Uint_Bias indexes the first element. */
#define Uints_Ptr (uintp__uints__table - Uint_First_Entry)
extern struct Uint_Entry *uintp__uints__table;
#define Udigits_Ptr uintp__udigits__table
extern int *uintp__udigits__table;
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