69 lines
3.6 KiB
Ada
69 lines
3.6 KiB
Ada
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------------------------------------------------------------------------------
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-- --
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-- GNAT RUN-TIME COMPONENTS --
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-- --
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-- S Y S T E M . D I M --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 2012-2013, Free Software Foundation, Inc. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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-- Defines the dimension terminology
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---------------------------
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-- Dimension Terminology --
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---------------------------
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-- * Dimensioned type
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-- A dimensioned type is a type (more accurately a first subtype) to which
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-- the aspect Dimension_System applies to.
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-- type Mks_Type is new Long_Long_Float
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-- with
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-- Dimension_System => (
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-- (Unit_Name => Meter, Unit_Symbol => 'm', Dim_Symbol => 'L'),
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-- (Unit_Name => Kilogram, Unit_Symbol => "kg", Dim_Symbol => 'M'),
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-- (Unit_Name => Second, Unit_Symbol => 's', Dim_Symbol => 'T'),
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-- (Unit_Name => Ampere, Unit_Symbol => 'A', Dim_Symbol => 'I'),
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-- (Unit_Name => Kelvin, Unit_Symbol => 'K', Dim_Symbol => "Θ"),
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-- (Unit_Name => Mole, Unit_Symbol => "mol", Dim_Symbol => 'N'),
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-- (Unit_Name => Candela, Unit_Symbol => "cd", Dim_Symbol => 'J'));
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-- * Dimensioned subtype
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-- A dimensioned subtype is a subtype directly defined from the dimensioned
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-- type and to which the aspect Dimension applies to.
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-- subtype Length is Mks_Type
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-- with
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-- Dimension => (Symbol => 'm',
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-- Meter => 1,
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-- others => 0);
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package System.Dim is
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pragma Pure;
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end System.Dim;
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