| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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) 1992-2014, 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 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. -- |
| -- -- |
| -- 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. -- |
| -- -- |
| -- 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. -- |
| -- 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. |
| |
| -- This version here is for use with normal Unix math functions. Alternative |
| -- versions are provided for special situations: |
| |
| -- a-numaux-darwin For OS/X (special handling of sin/cos for accuracy) |
| -- a-numaux-libc-x86 For the x86, using 80-bit long double format |
| -- a-numaux-x86 For the x86, using 64-bit IEEE (inline asm statements) |
| -- a-numaux-vxworks For use on VxWorks (where we have no libm.a library) |
| |
| package Ada.Numerics.Aux is |
| pragma Pure; |
| |
| pragma Linker_Options ("-lm"); |
| |
| 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; |
