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/****************************************************************************
* *
* GNAT COMPILER COMPONENTS *
* *
* U I N T P *
* *
* C Header File *
* *
* $Revision: 1.1 $
* *
* Copyright (C) 1992-2001, 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. *
* Extensive contributions were provided by Ada Core Technologies Inc. *
* *
****************************************************************************/
/* 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 PARAMS((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 PARAMS((Uint));
/* Convert an Int into a Uint. */
#define UI_From_Int uintp__ui_from_int
extern Uint UI_From_Int PARAMS((int));
/* 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 PARAMS((Uint, tree));
/* 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_Table_Start)
extern struct Uint_Entry *uintp__uints__table;
#define Udigits_Ptr uintp__udigits__table
extern int *uintp__udigits__table;
#define Uint_0 (Uint_Direct_Bias + 0)
#define Uint_1 (Uint_Direct_Bias + 1)
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