| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT RUN-TIME COMPONENTS -- |
| -- -- |
| -- S Y S T E M . I M A G E _ N -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 2021-2022, 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. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| -- Enumeration_Type'Image for all enumeration types except those in package |
| -- Standard (where we have no opportunity to build image tables), and in |
| -- package System (where it is too early to start building image tables). |
| -- Special routines exist for the enumeration types in these packages. |
| |
| generic |
| |
| type Index_Type is range <>; |
| |
| package System.Image_N is |
| pragma Pure; |
| |
| procedure Image_Enumeration |
| (Pos : Natural; |
| S : in out String; |
| P : out Natural; |
| Names : String; |
| Indexes : System.Address); |
| -- Used to compute Enum'Image (Str) where Enum is some enumeration type |
| -- other than those defined in package Standard. Names is a string with |
| -- a lower bound of 1 containing the characters of all the enumeration |
| -- literals concatenated together in sequence. Indexes is the address of |
| -- an array of type array (0 .. N) of Index_Type, where N is the number of |
| -- enumeration literals in the type. The Indexes values are the starting |
| -- subscript of each enumeration literal, indexed by Pos values, with an |
| -- extra entry at the end containing Names'Length + 1. The reason that |
| -- Indexes is passed by address is that the actual type is created on the |
| -- fly by the expander. The desired 'Image value is stored in S (1 .. P) |
| -- and P is set on return. The caller guarantees that S is long enough to |
| -- hold the result and that the lower bound is 1. |
| |
| end System.Image_N; |