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Diffstat (limited to 'gcc/ada/a-nudira.ads')
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diff --git a/gcc/ada/a-nudira.ads b/gcc/ada/a-nudira.ads new file mode 100644 index 000000000..385f33619 --- /dev/null +++ b/gcc/ada/a-nudira.ads @@ -0,0 +1,73 @@ +------------------------------------------------------------------------------ +-- -- +-- 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 -- +-- <http://www.gnu.org/licenses/>. -- +-- -- +-- 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; |