/usr/share/ada/adainclude/gmpada/gnu_multiple_precision-random_numbers.adb is in libgmpada4-dev 0.0.20131223-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 | -- 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/>.
with Ada.Calendar;
with Interfaces.C; use Interfaces.C;
with GMP.Binding; use GMP.Binding;
package body GNU_Multiple_Precision.Random_Numbers is
procedure Random (Result : in out Big_Integer;
Gen : in out Generator;
Modulo : in Natural)
is
begin
Mpz_Urandomb (Result.Value, Gen.Gen_State.Value, unsigned_long (Modulo));
end Random;
procedure Random (Result : in out Big_Integer;
Gen : in out Generator;
Modulo : in Big_Integer)
is
begin
Mpz_Urandomm (Result.Value, Gen.Gen_State.Value, Modulo.Value);
end Random;
procedure Random_2exp (Result : in out Big_Integer;
Gen : in out Generator;
Count : in Bit_Count)
is
begin
Mpz_Urandomb (Result.Value, Gen.Gen_State.Value, Count);
end Random_2exp;
procedure Random_2exp (Result : in out Big_Float;
Gen : in out Generator;
Count : in Bit_Count)
is
begin
Mpf_Urandomb (Result.Value, Gen.Gen_State.Value, Count);
end Random_2exp;
procedure Reset (Gen : in out Generator;
Initiator : in Integer)
is
begin
Gmp_Randseed_Ui (Gen.Gen_State.Value, unsigned_long (abs Initiator));
end Reset;
procedure Reset (Gen : in out Generator;
Initiator : in Big_Integer)
is
begin
Gmp_Randseed (Gen.Gen_State.Value, Initiator.Value);
end Reset;
procedure Reset (Gen : in out Generator)
is
use Ada.Calendar;
Now : constant Time := Clock;
begin
Gmp_Randseed_Ui (Gen.Gen_State.Value,
unsigned_long (Year (Now)) * 12 * 31 +
unsigned_long (Month (Now)) * 31 +
unsigned_long (Day (Now)) +
unsigned_long (Seconds (Now) * 1000.0));
end Reset;
procedure Save (Gen : in Generator;
To_State : out State)
is
begin
Gmp_Randclear (To_State.Value);
Gmp_Randinit_Set (To_State.Value, Gen.Gen_State.Value);
end Save;
procedure Reset (Gen : in out Generator;
From_State : in State)
is
begin
Gmp_Randclear (Gen.Gen_State.Value);
Gmp_Randinit_Set (Gen.Gen_State.Value, From_State.Value);
end Reset;
procedure Reset_Mersenne_Twister (Gen : in out Generator)
is
begin
Gmp_Randclear (Gen.Gen_State.Value);
Gmp_Randinit_Mt (Gen.Gen_State.Value);
end Reset_Mersenne_Twister;
procedure Reset_Linear_Congruential
(Gen : in out Generator;
A : in Big_Integer;
C : in Natural;
M2exp : in Bit_Count)
is
begin
Gmp_Randclear (Gen.Gen_State.Value);
Gmp_Randinit_Lc_2exp (Gen.Gen_State.Value, A.Value, unsigned_long (C),
M2exp);
end Reset_Linear_Congruential;
procedure Generate_Corner_Case_Random_Bytes
(Rop : in out Big_Integer;
Gen : in out Generator;
Count : in Bit_Count)
is
begin
Mpz_Rrandomb (Rop.Value, Gen.Gen_State.Value, Count);
end Generate_Corner_Case_Random_Bytes;
procedure Reset_Linear_Congruential_2exp_Size
(Gen : in out Generator;
Size : in Natural;
Found_In_Table : out Boolean)
is
Ret : int;
begin
Gmp_Randinit_Lc_2exp_Size (Ret, Gen.Gen_State.Value,
unsigned_long (Size));
Found_In_Table := Ret /= 0;
end Reset_Linear_Congruential_2exp_Size;
overriding procedure Initialize (Object : in out State)
is
begin
Gmp_Randinit_Default (Object.Value);
end Initialize;
overriding procedure Adjust (Object : in out State)
is
Temp : constant Gmp_Randstate_T := Object.Value;
begin
Gmp_Randinit_Set (Object.Value, Temp);
end Adjust;
overriding procedure Finalize (Object : in out State)
is
begin
Gmp_Randclear (Object.Value);
end Finalize;
end GNU_Multiple_Precision.Random_Numbers;
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