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-- (C Library Version, non-x86) -- 9-- -- 10-- Copyright (C) 1992-2009, 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-- One advantage of using this package is that it will interface directly to 38-- hardware instructions, such as the those provided on the Intel x86. 39 40-- This version is for use with normal Unix math functions. Alternative 41-- packages are used on OpenVMS (different import names), VxWorks (no 42-- need for the -lm Linker_Options), and on the x86 (where we have two 43-- versions one using inline ASM, and one importing from the C long 44-- routines that take 80-bit arguments). 45 46package Ada.Numerics.Aux is 47 pragma Pure; 48 49 pragma Linker_Options ("-lm"); 50 51 type Double is digits 15; 52 -- Type Double is the type used to call the C routines 53 54 -- We import these functions directly from C. Note that we label them 55 -- all as pure functions, because indeed all of them are in fact pure! 56 57 function Sin (X : Double) return Double; 58 pragma Import (C, Sin, "sin"); 59 pragma Pure_Function (Sin); 60 61 function Cos (X : Double) return Double; 62 pragma Import (C, Cos, "cos"); 63 pragma Pure_Function (Cos); 64 65 function Tan (X : Double) return Double; 66 pragma Import (C, Tan, "tan"); 67 pragma Pure_Function (Tan); 68 69 function Exp (X : Double) return Double; 70 pragma Import (C, Exp, "exp"); 71 pragma Pure_Function (Exp); 72 73 function Sqrt (X : Double) return Double; 74 pragma Import (C, Sqrt, "sqrt"); 75 pragma Pure_Function (Sqrt); 76 77 function Log (X : Double) return Double; 78 pragma Import (C, Log, "log"); 79 pragma Pure_Function (Log); 80 81 function Acos (X : Double) return Double; 82 pragma Import (C, Acos, "acos"); 83 pragma Pure_Function (Acos); 84 85 function Asin (X : Double) return Double; 86 pragma Import (C, Asin, "asin"); 87 pragma Pure_Function (Asin); 88 89 function Atan (X : Double) return Double; 90 pragma Import (C, Atan, "atan"); 91 pragma Pure_Function (Atan); 92 93 function Sinh (X : Double) return Double; 94 pragma Import (C, Sinh, "sinh"); 95 pragma Pure_Function (Sinh); 96 97 function Cosh (X : Double) return Double; 98 pragma Import (C, Cosh, "cosh"); 99 pragma Pure_Function (Cosh); 100 101 function Tanh (X : Double) return Double; 102 pragma Import (C, Tanh, "tanh"); 103 pragma Pure_Function (Tanh); 104 105 function Pow (X, Y : Double) return Double; 106 pragma Import (C, Pow, "pow"); 107 pragma Pure_Function (Pow); 108 109end Ada.Numerics.Aux; 110