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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- S Y S T E M . B O U N D E D _ S T R I N G S --
-- --
-- S p e c --
-- --
-- Copyright (C) 2016-2021, AdaCore --
-- --
-- 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. --
-- --
------------------------------------------------------------------------------
-- A very simple implentation of bounded strings, used by tracebacks
package System.Bounded_Strings is
type Bounded_String (Max_Length : Natural) is limited private;
-- A string whose length is bounded by Max_Length. The bounded string is
-- empty at initialization.
procedure Append (X : in out Bounded_String; C : Character);
procedure Append (X : in out Bounded_String; S : String);
-- Append a character or a string to X. If the bounded string is full,
-- extra characters are simply dropped.
function To_String (X : Bounded_String) return String;
function "+" (X : Bounded_String) return String renames To_String;
-- Convert to a normal string
procedure Append_Address (X : in out Bounded_String; A : Address);
-- Append an address to X
function Is_Full (X : Bounded_String) return Boolean;
-- Return True iff X is full and any character or string will be dropped
-- if appended.
private
type Bounded_String (Max_Length : Natural) is limited record
Length : Natural := 0;
-- Current length of the string
Chars : String (1 .. Max_Length);
-- String content
end record;
end System.Bounded_Strings;