------------------------------------------------------------------------------
-- --
--- GNAT RUNTIME COMPONENTS --
+-- 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, non-x86) --
-- --
--- --
--- Copyright (C) 1992-1998 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2009, 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 2, or (at your option) any later ver- --
+-- 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. 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. --
+-- 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. --
-- --
--- 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. --
+-- 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. --
--- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- 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).
+-- This version is for use with normal Unix math functions. Alternative
+-- packages are used on OpenVMS (different import names), VxWorks (no
+-- need for the -lm Linker_Options), and on the x86 (where we have two
+-- versions one using inline ASM, and one importing from the C long
+-- routines that take 80-bit arguments).
package Ada.Numerics.Aux is
-pragma Pure (Aux);
+ pragma Pure;
pragma Linker_Options ("-lm");
type Double is digits 15;
- pragma Float_Representation (IEEE_Float, Double);
- -- Type Double is the type used to call the C routines. Note that this
- -- is IEEE format even when running on VMS with Vax_Float representation
- -- since we use the IEEE version of the C library with VMS.
+ -- 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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