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1 706 jeremybenn
------------------------------------------------------------------------------
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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 . A U X                      --
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--                                                                          --
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--                                 S p e c                                  --
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--                       (C Library Version, non-x86)                       --
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--                                                                          --
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--          Copyright (C) 1992-2009, 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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--  This package provides the basic computational interface for the generic
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--  elementary functions. The C library version interfaces with the routines
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--  in the C mathematical library, and is thus quite portable, although it may
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--  not necessarily meet the requirements for accuracy in the numerics annex.
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--  One advantage of using this package is that it will interface directly to
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--  hardware instructions, such as the those provided on the Intel x86.
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--  This version is for use with normal Unix math functions. Alternative
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--  packages are used on OpenVMS (different import names), VxWorks (no
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--  need for the -lm Linker_Options), and on the x86 (where we have two
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--  versions one using inline ASM, and one importing from the C long
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--  routines that take 80-bit arguments).
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package Ada.Numerics.Aux is
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   pragma Pure;
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   pragma Linker_Options ("-lm");
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   type Double is digits 15;
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   --  Type Double is the type used to call the C routines
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   --  We import these functions directly from C. Note that we label them
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   --  all as pure functions, because indeed all of them are in fact pure!
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   function Sin (X : Double) return Double;
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   pragma Import (C, Sin, "sin");
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   pragma Pure_Function (Sin);
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   function Cos (X : Double) return Double;
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   pragma Import (C, Cos, "cos");
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   pragma Pure_Function (Cos);
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   function Tan (X : Double) return Double;
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   pragma Import (C, Tan, "tan");
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   pragma Pure_Function (Tan);
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   function Exp (X : Double) return Double;
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   pragma Import (C, Exp, "exp");
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   pragma Pure_Function (Exp);
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   function Sqrt (X : Double) return Double;
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   pragma Import (C, Sqrt, "sqrt");
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   pragma Pure_Function (Sqrt);
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   function Log (X : Double) return Double;
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   pragma Import (C, Log, "log");
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   pragma Pure_Function (Log);
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   function Acos (X : Double) return Double;
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   pragma Import (C, Acos, "acos");
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   pragma Pure_Function (Acos);
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   function Asin (X : Double) return Double;
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   pragma Import (C, Asin, "asin");
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   pragma Pure_Function (Asin);
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   function Atan (X : Double) return Double;
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   pragma Import (C, Atan, "atan");
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   pragma Pure_Function (Atan);
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   function Sinh (X : Double) return Double;
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   pragma Import (C, Sinh, "sinh");
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   pragma Pure_Function (Sinh);
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   function Cosh (X : Double) return Double;
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   pragma Import (C, Cosh, "cosh");
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   pragma Pure_Function (Cosh);
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   function Tanh (X : Double) return Double;
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   pragma Import (C, Tanh, "tanh");
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   pragma Pure_Function (Tanh);
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   function Pow (X, Y : Double) return Double;
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   pragma Import (C, Pow, "pow");
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   pragma Pure_Function (Pow);
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end Ada.Numerics.Aux;

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