74 lines
4.1 KiB
Ada
74 lines
4.1 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT RUNTIME COMPONENTS --
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-- --
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-- S Y S T E M . I M G _ R E A L --
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-- --
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-- S p e c --
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-- --
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-- $Revision: 1.11 $
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-- --
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-- Copyright (C) 1992-2000 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 2, 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. See the GNU General Public License --
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-- for more details. You should have received a copy of the GNU General --
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-- Public License distributed with GNAT; see file COPYING. If not, write --
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-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
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-- MA 02111-1307, USA. --
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-- --
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-- As a special exception, if other files instantiate generics from this --
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-- unit, or you link this unit with other files to produce an executable, --
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-- this unit does not by itself cause the resulting executable to be --
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-- covered by the GNU General Public License. This exception does not --
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-- however invalidate any other reasons why the executable file might be --
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-- covered by the GNU Public License. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
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-- --
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------------------------------------------------------------------------------
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-- Image for fixed and float types (also used for Float_IO/Fixed_IO output)
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package System.Img_Real is
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pragma Preelaborate (Img_Real);
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function Image_Ordinary_Fixed_Point
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(V : Long_Long_Float;
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Aft : Natural)
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return String;
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-- Computes the image of V and returns the result according to the rules
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-- for image for fixed-point types (RM 3.5(34)), where Aft is the value of
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-- the Aft attribute for the fixed-point type. This function is used only
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-- for ordinary fixed point (see package System.Img_Dec for handling of
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-- decimal fixed-point).
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function Image_Floating_Point
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(V : Long_Long_Float;
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Digs : Natural)
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return String;
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-- Computes the image of V and returns the result according to the rules
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-- for image for foating-point types (RM 3.5(33)), where Digs is the value
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-- of the Digits attribute for the floating-point type.
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procedure Set_Image_Real
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(V : Long_Long_Float;
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S : out String;
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P : in out Natural;
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Fore : Natural;
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Aft : Natural;
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Exp : Natural);
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-- Sets the image of V starting at S (P + 1), updating P to point to the
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-- last character stored, the caller promises that the buffer is large
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-- enough and no check is made for this. Constraint_Error will not
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-- necessarily be raised if this is violated, since it is perfectly valid
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-- to compile this unit with checks off). The Fore, Aft and Exp values
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-- can be set to any valid values for the case of use from Text_IO.
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end System.Img_Real;
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