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-- GMPAda, binding to the Ada Language for the GNU MultiPrecision library.
-- Copyright (C) 2007-2010 Nicolas Boulenguez <nicolas.boulenguez@free.fr>
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT 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
-- along with this program. If not, see <http://www.gnu.org/licenses/>.
package GNU_Multiple_Precision.Random_Numbers is
pragma Elaborate_Body;
type Generator is limited private;
-- No need for Stream attributes for this type.
-- Use Save, Reset and Big_Integer instead.
procedure Random (Result : in out Big_Integer;
Gen : in out Generator;
Modulo : in Natural);
-- For usual needs, the default Ada.Random is enough.
procedure Random (Result : in out Big_Integer;
Gen : in out Generator;
Modulo : in Big_Integer);
procedure Random_2exp (Result : in out Big_Integer;
Gen : in out Generator;
Count : in Bit_Count);
procedure Random_2exp (Result : in out Big_Float;
Gen : in out Generator;
Count : in Bit_Count);
-- 0.0 <= Mantissa <1.0
procedure Reset (Gen : in out Generator;
Initiator : in Integer);
procedure Reset (Gen : in out Generator;
Initiator : in Big_Integer);
procedure Reset (Gen : in out Generator);
type State is private;
-- No Stream attributes for this type.
-- Use Big_Integer instead.
procedure Save (Gen : in Generator;
To_State : out State);
procedure Reset (Gen : in out Generator;
From_State : in State);
procedure Reset_Mersenne_Twister (Gen : in out Generator);
procedure Reset_Linear_Congruential (Gen : in out Generator;
A : in Big_Integer;
C : in Natural;
M2exp : in Bit_Count);
procedure Reset_Linear_Congruential_2exp_Size
(Gen : in out Generator;
Size : in Natural;
Found_In_Table : out Boolean);
procedure Generate_Corner_Case_Random_Bytes
(Rop : in out Big_Integer;
Gen : in out Generator;
Count : in Bit_Count);
-- Generate a random integer with long strings of zeros and ones
-- in the binary representation. Useful for testing functions and
-- algorithms, since this kind of random numbers have proven to be
-- more likely to trigger corner-case bugs.
private
type State is new Ada.Finalization.Controlled with record
Value : GMP.Binding.Gmp_Randstate_T;
end record;
overriding procedure Initialize (Object : in out State);
overriding procedure Adjust (Object : in out State);
overriding procedure Finalize (Object : in out State);
type Generator is limited record
Gen_State : State;
end record;
pragma Inline (Adjust);
pragma Inline (Finalize);
pragma Inline (Generate_Corner_Case_Random_Bytes);
pragma Inline (Initialize);
pragma Inline (Random);
pragma Inline (Random_2exp);
pragma Inline (Reset);
pragma Inline (Reset_Linear_Congruential);
pragma Inline (Reset_Linear_Congruential_2exp_Size);
pragma Inline (Reset_Mersenne_Twister);
pragma Inline (Save);
end GNU_Multiple_Precision.Random_Numbers;
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