------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- S Y S T E M . I M G _ F I X E D _ 6 4 -- -- -- -- S p e c -- -- -- -- Copyright (C) 2020-2025, 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. -- -- -- ------------------------------------------------------------------------------ -- This package contains the routines for supporting the ``Image`` attribute -- for ordinary fixed point types up to 64-bit small and mantissa. with Interfaces; with System.Arith_64; with System.Image_F; package System.Img_Fixed_64 is subtype Int64 is Interfaces.Integer_64; subtype Uns64 is Interfaces.Unsigned_64; package Impl is new Image_F (Int64, Uns64, Arith_64.Scaled_Divide64); procedure Image_Fixed64 (V : Int64; S : in out String; P : out Natural; Num : Int64; Den : Int64; For0 : Natural; Aft0 : Natural) renames Impl.Image_Fixed; -- Computes fixed_type'Image (V), where V is the integer value (in units of -- small) of an ordinary fixed point type with small Num/Den, and stores -- 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 4.10(14)). -- For0 and Aft0 are the values of the Fore and Aft attributes for the -- fixed point type whose mantissa type is Int64 and whose small is -- Num/Den. This function is used only for fixed point whose Small is an -- integer or its reciprocal (see package System.Image_R for the handling -- of other ordinary fixed-point types). The caller guarantees that S is -- long enough to hold the result and has a lower bound of 1. procedure Set_Image_Fixed64 (V : Int64; S : in out String; P : in out Natural; Num : Int64; Den : Int64; For0 : Natural; Aft0 : Natural; Fore : Natural; Aft : Natural; Exp : Natural) renames Impl.Set_Image_Fixed; -- Sets the image of V, where V is the integer value (in units of small) -- of a fixed point type with small Num/Den, starting at S (P + 1) and -- updating P to point to the last character stored, the caller promises -- that the buffer is large enough and no check is made. Constraint_Error -- will not necessarily be raised if this requirement is violated, since -- it is perfectly valid to compile this unit with checks off. For0 and -- Aft0 are the values of the Fore and Aft attributes for the fixed point -- type whose mantissa type is Int64 and whose small is Num/Den. The Fore, -- Aft and Exp can be set to any valid values for use by Text_IO.Fixed_IO. end System.Img_Fixed_64;