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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [ada/] [uintp.h] - Blame information for rev 281

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1 281 jeremybenn
/****************************************************************************
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 *                                                                          *
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 *                         GNAT COMPILER COMPONENTS                         *
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 *                                                                          *
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 *                                U I N T P                                 *
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 *                                                                          *
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 *                              C Header File                               *
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 *                                                                          *
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 *            Copyright (C) 1992-2007, 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, go to *
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 * http://www.gnu.org/licenses for a complete copy of the license.          *
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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 corresponds to the Ada package specification Uintp. It was
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   created manually from the files uintp.ads and uintp.adb  */
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/* Support for universal integer arithmetic */
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struct Uint_Entry
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{
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  Pos Length;
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  Int Loc;
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};
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/* See if a Uint is within the range of an integer.  */
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#define UI_Is_In_Int_Range  uintp__ui_is_in_int_range
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extern Boolean UI_Is_In_Int_Range       (Uint);
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/* Obtain Char_Code value from Uint input. Value must be in range.  */
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#define UI_To_CC uintp__ui_to_cc
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extern Char_Code UI_To_CC               (Uint);
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/* Obtain Int value from Uint input. This will abort if the result is
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   out of range.  */
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#define UI_To_Int uintp__ui_to_int
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extern Int UI_To_Int                    (Uint);
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/* Convert an Int into a Uint.  */
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#define UI_From_Int uintp__ui_from_int
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extern Uint UI_From_Int                 (int);
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/* Convert a Char_Code into a Uint.  */
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#define UI_From_CC uintp__ui_from_cc
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extern Uint UI_From_CC                  (Char_Code);
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/* Similarly, but return a GCC INTEGER_CST.  Overflow is tested by the
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   constant-folding used to build the node.  TYPE is the GCC type of the
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   resulting node.  */
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extern tree UI_To_gnu                   (Uint, tree);
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/* Universal integers are represented by the Uint type which is an index into
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   the Uints_Ptr table containing Uint_Entry values.  A Uint_Entry contains an
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   index and length for getting the "digits" of the universal integer from the
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   Udigits_Ptr table.
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   For efficiency, this method is used only for integer values larger than the
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   constant Uint_Bias.  If a Uint is less than this constant, then it contains
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   the integer value itself.  The origin of the Uints_Ptr table is adjusted so
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   that a Uint value of Uint_Bias indexes the first element.  */
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#define Uints_Ptr (uintp__uints__table - Uint_Table_Start)
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extern struct Uint_Entry *uintp__uints__table;
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#define Udigits_Ptr uintp__udigits__table
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extern int *uintp__udigits__table;
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#define Uint_0 (Uint_Direct_Bias + 0)
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#define Uint_1 (Uint_Direct_Bias + 1)

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