uintp.h   [plain text]

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/* 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	(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);

/* 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			(Uint);

/* Convert an Int into a Uint.  */
#define UI_From_Int uintp__ui_from_int
extern Uint UI_From_Int			(int);

/* Convert a Char_Code into a Uint.  */
#define UI_From_CC uintp__ui_from_cc
extern Uint UI_From_CC                  (Char_Code);

/* 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			(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)