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- ------------------------------------------------------------------------------
- -- --
- -- GNAT COMPILER COMPONENTS --
- -- --
- -- S Y S T E M . P A R A M E T E R S --
- -- --
- -- S p e c --
- -- --
- -- $Revision: 1.7 $ --
- -- --
- -- Copyright (c) 1992,1993,1994 NYU, All Rights Reserved --
- -- --
- -- The GNAT library is free software; you can redistribute it and/or modify --
- -- it under terms of the GNU Library General Public License as published by --
- -- the Free Software Foundation; either version 2, or (at your option) any --
- -- later version. The GNAT library is distributed in the hope that it will --
- -- be useful, but WITHOUT ANY WARRANTY; without even the implied warranty --
- -- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
- -- Library General Public License for more details. You should have --
- -- received a copy of the GNU Library General Public License along with --
- -- the GNAT library; see the file COPYING.LIB. If not, write to the Free --
- -- Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. --
- -- --
- ------------------------------------------------------------------------------
-
- -- This package defines some system dependent parameters for GNAT. These
- -- constants are referenced at compile time and by the runtime library,
- -- and may be changed to customize a particular variant of GNAT.
-
- package System.Parameters is
- pragma Pure (Parameters);
-
- Count_Max : constant := Integer'Last;
- -- Upper bound of type Ada.Text_IO.Count. This value must be large
- -- enough so that the assumption that the Line, Column and Page
- -- counts can never exceed this value is a valid assumption.
-
- Field_Max : constant := 100;
- -- Upper bound of type Ada.Text_IO.Field
-
- Exception_Msg_Max : constant := 200;
- -- Maximum length of message in exception occurrence
-
- Max_Line_Length : constant := 200;
- -- Maximum source line length. This can be set to any value up to
- -- 2**15 - 1, a limit imposed by the assumption that column numbers
- -- can be stored in 16 bits (see Types.Column_Number). The value of
- -- 200 is the minimum value required (RM 2.2(15)).
-
- Max_Name_Length : constant := 1024;
- -- Maximum length of unit name (including all dots, and " (spec)") and
- -- of file names in the library, must be at least Max_Line_Length, but
- -- can be larger.
-
- Max_Instantiations : constant := 2000;
- -- Maximum number of instantiations permitted (to stop runaway cases
- -- of nested instantiations). These situations probably only occur in
- -- specially concocted test cases.
-
- Max_Static_Aggregate_Size : constant := 1024;
- -- Maximum size of aggregate that is built statically (see Sem_Aggr)
-
- Tag_Errors : constant Boolean := False;
- -- If set to true, then brief form error messages will be prefaced by
- -- the string "error:"
-
- end System.Parameters;
-