------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- S Y S T E M . I M G _ L L I -- -- -- -- S p e c -- -- -- -- Copyright (C) 1992-2024, 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 provides the subprograms supporting the ``Image`` attribute -- and ``Ada.Text_IO.Integer_IO`` conversions routines for signed integer -- types larger than Size ``Integer'Size``. -- Preconditions in this unit are meant for analysis only, not for run-time -- checking, so that the expected exceptions are raised. This is enforced by -- setting the corresponding assertion policy to Ignore. Postconditions and -- contract cases should not be executed at runtime as well, in order not to -- slow down the execution of these functions. pragma Assertion_Policy (Pre => Ignore, Post => Ignore, Contract_Cases => Ignore, Ghost => Ignore, Subprogram_Variant => Ignore); with System.Image_I; with System.Unsigned_Types; with System.Vs_LLI; with System.Vs_LLU; package System.Img_LLI with SPARK_Mode is subtype Long_Long_Unsigned is Unsigned_Types.Long_Long_Unsigned; package Impl is new Image_I (Int => Long_Long_Integer, Uns => Long_Long_Unsigned, U_Spec => System.Vs_LLU.Spec, I_Spec => System.Vs_LLI.Spec); procedure Image_Long_Long_Integer (V : Long_Long_Integer; S : in out String; P : out Natural) renames Impl.Image_Integer; -- Computes Long_Long_Integer'Image (``V``) and stores the result in -- ``S`` (1 .. ``P``) setting the resulting value of ``P``. The caller -- guarantees that ``S`` is long enough to hold the result, and that -- ``S``'First is 1. -- -- If ``V`` is not negative, the subprogram writes the leading blank in -- ``S``. It then calls *Set_Image_Long_Long_Integer*. procedure Set_Image_Long_Long_Integer (V : Long_Long_Integer; S : in out String; P : in out Natural) renames Impl.Set_Image_Integer; -- Stores the image of ``V`` in ``S`` starting at ``S`` (``P`` + 1), -- ``P`` is updated to point to the last character stored. The value -- stored is identical to the value of Long_Long_Integer'Image (``V``) -- except that no leading space is stored when ``V`` is non-negative. The -- caller guarantees that ``S`` is long enough to hold the result. ``S`` -- need not have a lower bound of 1. -- -- If ``V`` is negative, the subprogram writes the leading '-' character, -- otherwise work with -``V`` (always work with negative value to avoid -- overflow: the largest negative number is not a special case). -- -- This subprogram then uses recursion: if the value is equal or less than -- -10, recurse with the value divided by 10. Then add the digit for the -- remainder. end System.Img_LLI;