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-------------------------------------------------------------------------------
--- --
--- GNAT RUN-TIME COMPONENTS --
--- --
--- S Y S T E M . I M G _ R E A L --
--- --
--- S p e c --
--- --
--- Copyright (C) 1992-2009, 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 --
--- <http://www.gnu.org/licenses/>. --
--- --
--- GNAT was originally developed by the GNAT team at New York University. --
--- Extensive contributions were provided by Ada Core Technologies Inc. --
--- --
-------------------------------------------------------------------------------
-
--- Image for fixed and float types (also used for Float_IO/Fixed_IO output)
-
-package System.Img_Real is
- pragma Pure;
-
- procedure Image_Ordinary_Fixed_Point
- (V : Long_Long_Float;
- S : in out String;
- P : out Natural;
- Aft : Natural);
- -- Computes fixed_type'Image (V) and returns the result in S (1 .. P)
- -- updating P on return. The result is computed according to the rules for
- -- image for fixed-point types (RM 3.5(34)), where Aft is the value of the
- -- Aft attribute for the fixed-point type. This function is used only for
- -- ordinary fixed point (see package System.Img_Dec for handling of decimal
- -- fixed-point). The caller guarantees that S is long enough to hold the
- -- result and has a lower bound of 1.
-
- procedure Image_Floating_Point
- (V : Long_Long_Float;
- S : in out String;
- P : out Natural;
- Digs : Natural);
- -- Computes fixed_type'Image (V) and returns the result in S (1 .. P)
- -- updating P on return. The result is computed according to the rules for
- -- image for floating-point types (RM 3.5(33)), where Digs is the value of
- -- the Digits attribute for the floating-point type. The caller guarantees
- -- that S is long enough to hold the result and has a lower bound of 1.
-
- procedure Set_Image_Real
- (V : Long_Long_Float;
- S : out String;
- P : in out Natural;
- Fore : Natural;
- Aft : Natural;
- Exp : Natural);
- -- Sets the image of V starting at S (P + 1), updating P to point to the
- -- last character stored, the caller promises that the buffer is large
- -- enough and no check is made for this. Constraint_Error will not
- -- necessarily be raised if this is violated, since it is perfectly valid
- -- to compile this unit with checks off). The Fore, Aft and Exp values
- -- can be set to any valid values for the case of use from Text_IO. Note
- -- that no space is stored at the start for non-negative values.
-
-end System.Img_Real;