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Diffstat (limited to 'gcc-4.8.3/gcc/ada/uintp.h')
| -rw-r--r-- | gcc-4.8.3/gcc/ada/uintp.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/gcc-4.8.3/gcc/ada/uintp.h b/gcc-4.8.3/gcc/ada/uintp.h new file mode 100644 index 000000000..b950a88cb --- /dev/null +++ b/gcc-4.8.3/gcc/ada/uintp.h @@ -0,0 +1,104 @@ +/**************************************************************************** + * * + * GNAT COMPILER COMPONENTS * + * * + * U I N T P * + * * + * C Header File * + * * + * Copyright (C) 1992-2011, 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 3, 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 COPYING3. If not, go to * + * http://www.gnu.org/licenses for a complete copy of the license. * + * * + * 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. */ + +#ifdef __cplusplus +extern "C" { +#endif + +/* 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 (Uint); + +/* Obtain Char_Code value from Uint input. Value must be in range. */ +#define UI_To_CC uintp__ui_to_cc +extern Char_Code UI_To_CC (Uint); + +/* Convert a Char_Code into a Uint. */ +#define UI_From_CC uintp__ui_from_cc +extern Uint UI_From_CC (Char_Code); + +/* Obtain Int value from Uint input. Abort if the result is out of range. */ +#define UI_To_Int uintp__ui_to_int +extern Int UI_To_Int (Uint); + +/* Similarly, but return a GCC INTEGER_CST. */ +extern tree UI_To_gnu (Uint, tree); + +/* Convert an Int into a Uint. */ +#define UI_From_Int uintp__ui_from_int +extern Uint UI_From_Int (int); + +/* Similarly, but take a GCC INTEGER_CST. */ +extern Uint UI_From_gnu (tree); + +/* Uint values are represented as multiple precision integers stored in a + multi-digit format using UI_Base as the base. This value is chosen so + that the product UI_Base*UI_Base is within the range of Int values. */ +#define UI_Base uintp__base +extern const int UI_Base; + +/* Types for the fat pointer of Int vectors and the template it points to. */ +typedef struct {int Low_Bound, High_Bound; } Vector_Template; +typedef struct {const int *Array; Vector_Template *Bounds; } + __attribute ((aligned (sizeof (char *) * 2))) Int_Vector; + +/* Create and return the Uint value from the Int vector. */ +#define Vector_To_Uint uintp__vector_to_uint +extern Uint Vector_To_Uint (Int_Vector, Boolean); + +/* Compare integer values for less than. */ +#define UI_Lt uintp__ui_lt +extern Boolean UI_Lt (Uint, Uint); + +/* 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; + +#ifdef __cplusplus +} +#endif |