gcc/ada/libgnat/s-imgboo.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --                      S Y S T E M . I M G _ B O O L                       --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --           Copyright (C) 1992-2024, Free Software Foundation, Inc.        --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 3,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
  17 --                                                                          --
  18 -- As a special exception under Section 7 of GPL version 3, you are granted --
  19 -- additional permissions described in the GCC Runtime Library Exception,   --
  20 -- version 3.1, as published by the Free Software Foundation.               --
  21 --                                                                          --
  22 -- You should have received a copy of the GNU General Public License and    --
  23 -- a copy of the GCC Runtime Library Exception along with this program;     --
  24 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
  25 -- <http://www.gnu.org/licenses/>.                                          --
  26 --                                                                          --
  27 -- GNAT was originally developed  by the GNAT team at  New York University. --
  28 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  29 --                                                                          --
  30 ------------------------------------------------------------------------------
  31
  32 --  Ghost code, loop invariants and assertions in this unit are meant for
  33 --  analysis only, not for run-time checking, as it would be too costly
  34 --  otherwise. This is enforced by setting the assertion policy to Ignore.
  35
  36 pragma Assertion_Policy (Ghost          => Ignore,
  37                          Loop_Invariant => Ignore,
  38                          Assert         => Ignore);
  39
  40 package body System.Img_Bool
  41   with SPARK_Mode
  42 is
  43
  44    -------------------
  45    -- Image_Boolean --
  46    -------------------
  47
  48    procedure Image_Boolean
  49      (V : Boolean;
  50       S : in out String;
  51       P : out Natural)
  52    is
  53       pragma Assert (S'First = 1);
  54    begin
  55       if V then
  56          S (1 .. 4) := "TRUE";
  57          P := 4;
  58          pragma Assert
  59            (System.Val_Spec.First_Non_Space_Ghost (S, S'First, S'Last) = 1);
  60       else
  61          S (1 .. 5) := "FALSE";
  62          P := 5;
  63          pragma Assert
  64            (System.Val_Spec.First_Non_Space_Ghost (S, S'First, S'Last) = 1);
  65       end if;
  66    end Image_Boolean;
  67
  68 end System.Img_Bool;