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------------------------------------------------------------------------------
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-- --
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-- GNAT RUN-TIME COMPONENTS --
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-- --
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-- A D A . N U M E R I C S . F L O A T _ R A N D O M --
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-- --
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-- B o d y --
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-- --
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-- Copyright (C) 1992-2010, Free Software Foundation, Inc. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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package body Ada.Numerics.Float_Random is
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package SRN renames System.Random_Numbers;
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use SRN;
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-----------
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-- Image --
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-----------
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function Image (Of_State : State) return String is
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begin
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return Image (SRN.State (Of_State));
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end Image;
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------------
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-- Random --
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------------
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function Random (Gen : Generator) return Uniformly_Distributed is
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begin
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return Random (SRN.Generator (Gen));
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end Random;
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-----------
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-- Reset --
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-----------
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-- Version that works from calendar
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procedure Reset (Gen : Generator) is
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begin
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Reset (SRN.Generator (Gen));
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end Reset;
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-- Version that works from given initiator value
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procedure Reset (Gen : Generator; Initiator : Integer) is
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begin
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Reset (SRN.Generator (Gen), Initiator);
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end Reset;
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-- Version that works from specific saved state
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procedure Reset (Gen : Generator; From_State : State) is
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begin
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Reset (SRN.Generator (Gen), From_State);
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end Reset;
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----------
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-- Save --
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----------
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procedure Save (Gen : Generator; To_State : out State) is
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begin
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Save (SRN.Generator (Gen), To_State);
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end Save;
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-----------
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-- Value --
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-----------
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function Value (Coded_State : String) return State is
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G : SRN.Generator;
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S : SRN.State;
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begin
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Reset (G, Coded_State);
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Save (G, S);
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return State (S);
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end Value;
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end Ada.Numerics.Float_Random;
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