------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- A D A . N U M E R I C S . D I S C R E T E _ R A N D O M -- -- -- -- S p e c -- -- -- -- Copyright (C) 1992-2010, Free Software Foundation, Inc. -- -- -- -- This specification is derived from the Ada Reference Manual for use with -- -- GNAT. The copyright notice above, and the license provisions that follow -- -- apply solely to the contents of the part following the private keyword. -- -- -- -- 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. -- -- -- -- 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 -- -- . -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- Note: the implementation used in this package is a version of the -- Mersenne Twister. See s-rannum.adb for details and references. with System.Random_Numbers; generic type Result_Subtype is (<>); package Ada.Numerics.Discrete_Random is -- Basic facilities type Generator is limited private; function Random (Gen : Generator) return Result_Subtype; procedure Reset (Gen : Generator; Initiator : Integer); procedure Reset (Gen : Generator); -- Advanced facilities type State is private; procedure Save (Gen : Generator; To_State : out State); procedure Reset (Gen : Generator; From_State : State); Max_Image_Width : constant := System.Random_Numbers.Max_Image_Width; function Image (Of_State : State) return String; function Value (Coded_State : String) return State; private type Generator is new System.Random_Numbers.Generator; type State is new System.Random_Numbers.State; end Ada.Numerics.Discrete_Random;