1------------------------------------------------------------------------------ 2-- -- 3-- GNAT RUN-TIME COMPONENTS -- 4-- -- 5-- A D A . N U M E R I C S . A U X -- 6-- -- 7-- S p e c -- 8-- (VMS Version) -- 9-- -- 10-- Copyright (C) 2003-2013, Free Software Foundation, Inc. -- 11-- -- 12-- GNAT is free software; you can redistribute it and/or modify it under -- 13-- terms of the GNU General Public License as published by the Free Soft- -- 14-- ware Foundation; either version 3, or (at your option) any later ver- -- 15-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- 16-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- 17-- or FITNESS FOR A PARTICULAR PURPOSE. -- 18-- -- 19-- As a special exception under Section 7 of GPL version 3, you are granted -- 20-- additional permissions described in the GCC Runtime Library Exception, -- 21-- version 3.1, as published by the Free Software Foundation. -- 22-- -- 23-- You should have received a copy of the GNU General Public License and -- 24-- a copy of the GCC Runtime Library Exception along with this program; -- 25-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- 26-- <http://www.gnu.org/licenses/>. -- 27-- -- 28-- GNAT was originally developed by the GNAT team at New York University. -- 29-- Extensive contributions were provided by Ada Core Technologies Inc. -- 30-- -- 31------------------------------------------------------------------------------ 32 33-- This package provides the basic computational interface for the generic 34-- elementary functions. The C library version interfaces with the routines 35-- in the C mathematical library, and is thus quite portable, although it may 36-- not necessarily meet the requirements for accuracy in the numerics annex. 37 38-- This is the VMS version 39 40package Ada.Numerics.Aux is 41 pragma Pure; 42 43 type Double is digits 15; 44 pragma Float_Representation (IEEE_Float, Double); 45 -- Type Double is the type used to call the C routines. Note that this 46 -- is IEEE format even when running on VMS with VAX_Native representation 47 -- since we use the IEEE version of the C library with VMS. 48 49 -- We import these functions directly from C. Note that we label them 50 -- all as pure functions, because indeed all of them are in fact pure. 51 52 function Sin (X : Double) return Double; 53 pragma Import (C, Sin, "MATH$SIN_T"); 54 pragma Pure_Function (Sin); 55 56 function Cos (X : Double) return Double; 57 pragma Import (C, Cos, "MATH$COS_T"); 58 pragma Pure_Function (Cos); 59 60 function Tan (X : Double) return Double; 61 pragma Import (C, Tan, "MATH$TAN_T"); 62 pragma Pure_Function (Tan); 63 64 function Exp (X : Double) return Double; 65 pragma Import (C, Exp, "MATH$EXP_T"); 66 pragma Pure_Function (Exp); 67 68 function Sqrt (X : Double) return Double; 69 pragma Import (C, Sqrt, "MATH$SQRT_T"); 70 pragma Pure_Function (Sqrt); 71 72 function Log (X : Double) return Double; 73 pragma Import (C, Log, "DECC$TLOG_2"); 74 pragma Pure_Function (Log); 75 76 function Acos (X : Double) return Double; 77 pragma Import (C, Acos, "MATH$ACOS_T"); 78 pragma Pure_Function (Acos); 79 80 function Asin (X : Double) return Double; 81 pragma Import (C, Asin, "MATH$ASIN_T"); 82 pragma Pure_Function (Asin); 83 84 function Atan (X : Double) return Double; 85 pragma Import (C, Atan, "MATH$ATAN_T"); 86 pragma Pure_Function (Atan); 87 88 function Sinh (X : Double) return Double; 89 pragma Import (C, Sinh, "MATH$SINH_T"); 90 pragma Pure_Function (Sinh); 91 92 function Cosh (X : Double) return Double; 93 pragma Import (C, Cosh, "MATH$COSH_T"); 94 pragma Pure_Function (Cosh); 95 96 function Tanh (X : Double) return Double; 97 pragma Import (C, Tanh, "MATH$TANH_T"); 98 pragma Pure_Function (Tanh); 99 100 function Pow (X, Y : Double) return Double; 101 pragma Import (C, Pow, "DECC$TPOW_2"); 102 pragma Pure_Function (Pow); 103 104end Ada.Numerics.Aux; 105