------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- S Y S T E M . D I M -- -- -- -- S p e c -- -- -- -- Copyright (C) 2012, 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 -- -- . -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- Defines the dimension terminology --------------------------- -- Dimension Terminology -- --------------------------- -- * Dimensioned type -- A dimensioned type is a type (more accurately a first subtype) to which -- the aspect Dimension_System applies to. -- type Mks_Type is new Long_Long_Float -- with -- Dimension_System => ((Meter, 'm'), -- (Kilogram, "kg"), -- (Second, 's'), -- (Ampere, 'A'), -- (Kelvin, 'K'), -- (Mole, "mol"), -- (Candela, "cd")); -- 'm' is the symbolic name of dimension Meter -- * Dimensioned subtype -- A dimensioned subtype is a subtype directly defined from the dimensioned -- type and to which the aspect Dimension applies to. -- subtype Length is Mks_Type -- with -- Dimension => ('m', -- Meter => 1, -- others => 0); -- 'm' is the symbolic name of dimensioned subtype Length package System.Dim is pragma Pure; end System.Dim;