------------------------------------------------------------------------------ | |

-- -- | |

-- GNAT RUNTIME 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) 1992-2003 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, 59 Temple Place - Suite 330, Boston, -- | |

-- MA 02111-1307, 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; |