1------------------------------------------------------------------------------ 2-- -- 3-- GNAT RUN-TIME COMPONENTS -- 4-- -- 5-- 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 -- 6-- -- 7-- B o d y -- 8-- -- 9-- Copyright (C) 1992-2010, Free Software Foundation, Inc. -- 10-- -- 11-- GNAT is free software; you can redistribute it and/or modify it under -- 12-- terms of the GNU General Public License as published by the Free Soft- -- 13-- ware Foundation; either version 3, or (at your option) any later ver- -- 14-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- 15-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- 16-- or FITNESS FOR A PARTICULAR PURPOSE. -- 17-- -- 18-- As a special exception under Section 7 of GPL version 3, you are granted -- 19-- additional permissions described in the GCC Runtime Library Exception, -- 20-- version 3.1, as published by the Free Software Foundation. -- 21-- -- 22-- You should have received a copy of the GNU General Public License and -- 23-- a copy of the GCC Runtime Library Exception along with this program; -- 24-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- 25-- <http://www.gnu.org/licenses/>. -- 26-- -- 27-- GNAT was originally developed by the GNAT team at New York University. -- 28-- Extensive contributions were provided by Ada Core Technologies Inc. -- 29-- -- 30------------------------------------------------------------------------------ 31 32package body Ada.Numerics.Discrete_Random is 33 34 package SRN renames System.Random_Numbers; 35 use SRN; 36 37 ----------- 38 -- Image -- 39 ----------- 40 41 function Image (Of_State : State) return String is 42 begin 43 return Image (SRN.State (Of_State)); 44 end Image; 45 46 ------------ 47 -- Random -- 48 ------------ 49 50 function Random (Gen : Generator) return Result_Subtype is 51 function Random is 52 new SRN.Random_Discrete (Result_Subtype, Result_Subtype'First); 53 begin 54 return Random (SRN.Generator (Gen)); 55 end Random; 56 57 ----------- 58 -- Reset -- 59 ----------- 60 61 procedure Reset (Gen : Generator) is 62 begin 63 Reset (SRN.Generator (Gen)); 64 end Reset; 65 66 procedure Reset (Gen : Generator; Initiator : Integer) is 67 begin 68 Reset (SRN.Generator (Gen), Initiator); 69 end Reset; 70 71 procedure Reset (Gen : Generator; From_State : State) is 72 begin 73 Reset (SRN.Generator (Gen), SRN.State (From_State)); 74 end Reset; 75 76 ---------- 77 -- Save -- 78 ---------- 79 80 procedure Save (Gen : Generator; To_State : out State) is 81 begin 82 Save (SRN.Generator (Gen), SRN.State (To_State)); 83 end Save; 84 85 ----------- 86 -- Value -- 87 ----------- 88 89 function Value (Coded_State : String) return State is 90 begin 91 return State (SRN.State'(Value (Coded_State))); 92 end Value; 93 94end Ada.Numerics.Discrete_Random; 95