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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- A D A . N U M E R I C S . A U X --
-- --
-- S p e c --
-- (C Library Version, VxWorks) --
-- --
-- Copyright (C) 1992-2005 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 2, 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. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
-- Boston, MA 02110-1301, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- This package provides the basic computational interface for the generic
-- elementary functions. The C library version interfaces with the routines
-- in the C mathematical library, and is thus quite portable, although it may
-- not necessarily meet the requirements for accuracy in the numerics annex.
-- One advantage of using this package is that it will interface directly to
-- hardware instructions, such as the those provided on the Intel x86.
-- Note: there are two versions of this package. One using the normal IEEE
-- 64-bit double format (which is this version), and one using 80-bit x86
-- long double (see file 4onumaux.ads).
package Ada.Numerics.Aux is
pragma Pure (Aux);
-- This version omits the pragma linker_options ("-lm") since there is
-- no libm.a library for VxWorks.
type Double is digits 15;
-- Type Double is the type used to call the C routines
-- We import these functions directly from C. Note that we label them
-- all as pure functions, because indeed all of them are in fact pure!
function Sin (X : Double) return Double;
pragma Import (C, Sin, "sin");
pragma Pure_Function (Sin);
function Cos (X : Double) return Double;
pragma Import (C, Cos, "cos");
pragma Pure_Function (Cos);
function Tan (X : Double) return Double;
pragma Import (C, Tan, "tan");
pragma Pure_Function (Tan);
function Exp (X : Double) return Double;
pragma Import (C, Exp, "exp");
pragma Pure_Function (Exp);
function Sqrt (X : Double) return Double;
pragma Import (C, Sqrt, "sqrt");
pragma Pure_Function (Sqrt);
function Log (X : Double) return Double;
pragma Import (C, Log, "log");
pragma Pure_Function (Log);
function Acos (X : Double) return Double;
pragma Import (C, Acos, "acos");
pragma Pure_Function (Acos);
function Asin (X : Double) return Double;
pragma Import (C, Asin, "asin");
pragma Pure_Function (Asin);
function Atan (X : Double) return Double;
pragma Import (C, Atan, "atan");
pragma Pure_Function (Atan);
function Sinh (X : Double) return Double;
pragma Import (C, Sinh, "sinh");
pragma Pure_Function (Sinh);
function Cosh (X : Double) return Double;
pragma Import (C, Cosh, "cosh");
pragma Pure_Function (Cosh);
function Tanh (X : Double) return Double;
pragma Import (C, Tanh, "tanh");
pragma Pure_Function (Tanh);
function Pow (X, Y : Double) return Double;
pragma Import (C, Pow, "pow");
pragma Pure_Function (Pow);
end Ada.Numerics.Aux;
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