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------------------------------------------------------------------------------
-- G N A T C O L L --
-- --
-- Copyright (C) 2009-2017, AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify it --
-- under terms of the GNU General Public License as published by the Free --
-- Software Foundation; either version 3, or (at your option) any later --
-- version. This library is distributed in the hope that it will be useful, --
-- but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHAN- --
-- TABILITY or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
------------------------------------------------------------------------------
package body GNATCOLL.GMP.Random_State is
use GNATCOLL.GMP.Lib;
----------------
-- Initialize --
----------------
procedure Initialize (This : out Generator) is
begin
gmp_randinit_default (This.G'Access);
end Initialize;
---------------------------------
-- Initialize_Mersenne_Twister --
---------------------------------
procedure Initialize_Mersenne_Twister (This : out Generator) is
begin
gmp_randinit_mt (This.G'Access);
end Initialize_Mersenne_Twister;
---------
-- Set --
---------
procedure Set
(This : out Generator;
To : Generator)
is
begin
gmp_randinit_set (This.G'Access, To.G'Access);
end Set;
-----------
-- Clear --
-----------
procedure Clear (This : in out Generator) is
begin
gmp_randclear (This.G'Access);
end Clear;
--------------
-- Set_Seed --
--------------
procedure Set_Seed
(This : in out Generator;
Seed : Big_Integer)
is
begin
gmp_randseed (This.G'Access, As_mpz_t (Seed));
end Set_Seed;
--------------
-- Set_Seed --
--------------
procedure Set_Seed
(This : in out Generator;
Seed : Unsigned_Long)
is
begin
gmp_randseed_ui (This.G'Access, Seed);
end Set_Seed;
-------------------------
-- Uniform_Number_Bits --
-------------------------
function Number_Bits
(This : Generator;
N : Unsigned_Long)
return Long
is
That : Generator renames This'Unrestricted_Access.all;
begin
return gmp_urandomb_ui (That.G'Access, N);
end Number_Bits;
--------------------
-- Uniform_Number --
--------------------
function Number
(This : Generator;
N : Unsigned_Long)
return Long
is
That : Generator renames This'Unrestricted_Access.all;
begin
return gmp_urandomm_ui (That.G'Access, N);
end Number;
------------------------
-- As_gmp_randstate_t --
------------------------
function As_gmp_randstate_t (This : Generator)
return access constant GNATCOLL.GMP.Lib.gmp_randstate_t
is
begin
return This.G'Unchecked_Access;
end As_gmp_randstate_t;
end GNATCOLL.GMP.Random_State;
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