diff options
Diffstat (limited to 'gcc-4.4.0/gcc/ada/g-rannum.ads')
| -rw-r--r-- | gcc-4.4.0/gcc/ada/g-rannum.ads | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/gcc-4.4.0/gcc/ada/g-rannum.ads b/gcc-4.4.0/gcc/ada/g-rannum.ads deleted file mode 100644 index 353e21cd0..000000000 --- a/gcc-4.4.0/gcc/ada/g-rannum.ads +++ /dev/null @@ -1,138 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT RUN-TIME COMPONENTS -- --- -- --- G N A T . R A N D O M _ N U M B E R S -- --- -- --- S p e c -- --- -- --- Copyright (C) 2007-2009 Free Software Foundation, Inc. -- --- -- --- 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. -- --- -- ------------------------------------------------------------------------------- - --- Extended pseudo-random number generation - --- This package provides a type representing pseudo-random number generators, --- and subprograms to extract various distributions of numbers from them. It --- also provides types for representing initialization values and snapshots of --- internal generator state, which permit reproducible pseudo-random streams. - --- The generator currently provided by this package has an extremely long --- period (at least 2**19937-1), and passes the Big Crush test suite, with the --- exception of the two linear complexity tests. Therefore, it is suitable for --- simulations, but should not be used as a cryptographic pseudo-random source --- without additional processing. - --- The design of this package effects is simplified compared to the design --- of standard Ada.Numerics packages. There is no separate State type; the --- Generator type itself suffices for this purpose. The parameter modes on --- Reset procedures better reflect the effect of these routines. - -with System.Random_Numbers; -with Interfaces; use Interfaces; - -package GNAT.Random_Numbers is - - type Generator is limited private; - subtype Initialization_Vector is - System.Random_Numbers.Initialization_Vector; - - function Random (Gen : Generator) return Float; - function Random (Gen : Generator) return Long_Float; - -- Return pseudo-random numbers uniformly distributed on [0 .. 1) - - function Random (Gen : Generator) return Interfaces.Integer_32; - function Random (Gen : Generator) return Interfaces.Unsigned_32; - function Random (Gen : Generator) return Interfaces.Integer_64; - function Random (Gen : Generator) return Interfaces.Unsigned_64; - function Random (Gen : Generator) return Integer; - function Random (Gen : Generator) return Long_Integer; - -- Return pseudo-random numbers uniformly distributed on T'First .. T'Last - -- for various builtin integer types. - - generic - type Result_Subtype is (<>); - Default_Min : Result_Subtype := Result_Subtype'Val (0); - function Random_Discrete - (Gen : Generator; - Min : Result_Subtype := Default_Min; - Max : Result_Subtype := Result_Subtype'Last) return Result_Subtype; - -- Returns pseudo-random numbers uniformly distributed on Min .. Max - - generic - type Result_Subtype is digits <>; - function Random_Float (Gen : Generator) return Result_Subtype; - -- Returns pseudo-random numbers uniformly distributed on [0 .. 1) - - function Random_Gaussian (Gen : Generator) return Long_Float; - function Random_Gaussian (Gen : Generator) return Float; - -- Returns pseudo-random numbers normally distributed value with mean 0 - -- and standard deviation 1.0. - - procedure Reset (Gen : out Generator); - -- Re-initialize the state of Gen from the time of day - - procedure Reset - (Gen : out Generator; - Initiator : Initialization_Vector); - procedure Reset - (Gen : out Generator; - Initiator : Interfaces.Integer_32); - procedure Reset - (Gen : out Generator; - Initiator : Interfaces.Unsigned_32); - procedure Reset - (Gen : out Generator; - Initiator : Integer); - -- Re-initialize Gen based on the Initiator in various ways. Identical - -- values of Initiator cause identical sequences of values. - - procedure Reset (Gen : out Generator; From_State : Generator); - -- Causes the state of Gen to be identical to that of From_State; Gen - -- and From_State will produce identical sequences of values subsequently. - - procedure Reset (Gen : out Generator; From_Image : String); - function Image (Gen : Generator) return String; - -- The call - -- Reset (Gen2, Image (Gen1)) - -- has the same effect as Reset (Gen2, Gen1); - - Max_Image_Width : constant := - System.Random_Numbers.Max_Image_Width + 2 + 20 + 5; - -- Maximum possible length of result of Image (...) - -private - - type Generator is limited record - Rep : System.Random_Numbers.Generator; - - Have_Gaussian : Boolean; - -- The algorithm used for Random_Gaussian produces deviates in - -- pairs. Have_Gaussian is true iff Random_Gaussian has returned one - -- member of the pair and Next_Gaussian contains the other. - - Next_Gaussian : Long_Float; - -- Next random deviate to be produced by Random_Gaussian, if - -- Have_Gaussian. - end record; - -end GNAT.Random_Numbers; |