mcp2221_1.21527.1_db7adc76/src/interfaces/angle.ads

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-- Angle measurement and control definitions

-- Copyright (C)2021-2023, Philip Munts dba Munts Technologies.
--
-- Redistribution and use in source and binary forms, with or without
-- modification, are permitted provided that the following conditions are met:
--
-- * Redistributions of source code must retain the above copyright notice,
--   this list of conditions and the following disclaimer.
--
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-- ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
-- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-- POSSIBILITY OF SUCH DAMAGE.

WITH Ada.Numerics;
WITH Ada.Text_IO;
WITH IO_Interfaces;

PACKAGE Angle IS

  TYPE Degrees IS NEW Float;

  TYPE Radians IS NEW Float;

  FUNCTION To_Radians(x : Degrees) RETURN Radians IS
   (Radians(x*Ada.Numerics.Pi/180.0));

  FUNCTION To_Degrees(x : Radians) RETURN Degrees IS
   (Degrees(x*180.0*Ada.Numerics.Pi));

  -- Instantiate text I/O packages

  PACKAGE Degrees_IO IS NEW Ada.Text_IO.Float_IO(Degrees);

  PACKAGE Radians_IO IS NEW Ada.Text_IO.Float_IO(Radians);

  -- Instantiate abstract interfaces package

  PACKAGE Interfaces IS NEW IO_Interfaces(Radians);

  -- Interfaces

  TYPE InputInterface IS INTERFACE AND Interfaces.InputInterface;

  TYPE OutputInterface IS INTERFACE AND Interfaces.OutputInterface;

  TYPE InputOutputInterface IS INTERFACE AND Interfaces.InputOutputInterface;

  -- Access types

  TYPE Input IS ACCESS ALL InputInterface'Class;

  TYPE Output IS ACCESS ALL OutputInterface'Class;

  TYPE InputOutput IS ACCESS ALL InputOutputInterface'Class;

END Angle;