------------------------------------------------------------------------------
-- --
--- GNAT RUNTIME COMPONENTS --
+-- GNAT RUN-TIME COMPONENTS --
-- --
-- S Y S T E M . S T R E A M _ A T T R I B U T E S --
-- --
-- S p e c --
-- --
--- Copyright (C) 1992-2003 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2009, 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 2, or (at your option) any later ver- --
+-- 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. See the GNU General Public License --
--- for more details. You should have received a copy of the GNU General --
--- Public License distributed with GNAT; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
+-- 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. --
with Ada.Streams;
package System.Stream_Attributes is
-pragma Preelaborate (Stream_Attributes);
+ pragma Preelaborate;
pragma Suppress (Accessibility_Check, Stream_Attributes);
-- No need to check accessibility on arguments of subprograms
-- is the same for all elementary types (no bounds or discriminants
-- are involved).
- function I_AD (Stream : access RST) return Fat_Pointer;
- function I_AS (Stream : access RST) return Thin_Pointer;
- function I_B (Stream : access RST) return Boolean;
- function I_C (Stream : access RST) return Character;
- function I_F (Stream : access RST) return Float;
- function I_I (Stream : access RST) return Integer;
- function I_LF (Stream : access RST) return Long_Float;
- function I_LI (Stream : access RST) return Long_Integer;
- function I_LLF (Stream : access RST) return Long_Long_Float;
- function I_LLI (Stream : access RST) return Long_Long_Integer;
- function I_LLU (Stream : access RST) return UST.Long_Long_Unsigned;
- function I_LU (Stream : access RST) return UST.Long_Unsigned;
- function I_SF (Stream : access RST) return Short_Float;
- function I_SI (Stream : access RST) return Short_Integer;
- function I_SSI (Stream : access RST) return Short_Short_Integer;
- function I_SSU (Stream : access RST) return UST.Short_Short_Unsigned;
- function I_SU (Stream : access RST) return UST.Short_Unsigned;
- function I_U (Stream : access RST) return UST.Unsigned;
- function I_WC (Stream : access RST) return Wide_Character;
+ function I_AD (Stream : not null access RST) return Fat_Pointer;
+ function I_AS (Stream : not null access RST) return Thin_Pointer;
+ function I_B (Stream : not null access RST) return Boolean;
+ function I_C (Stream : not null access RST) return Character;
+ function I_F (Stream : not null access RST) return Float;
+ function I_I (Stream : not null access RST) return Integer;
+ function I_LF (Stream : not null access RST) return Long_Float;
+ function I_LI (Stream : not null access RST) return Long_Integer;
+ function I_LLF (Stream : not null access RST) return Long_Long_Float;
+ function I_LLI (Stream : not null access RST) return Long_Long_Integer;
+ function I_LLU (Stream : not null access RST) return UST.Long_Long_Unsigned;
+ function I_LU (Stream : not null access RST) return UST.Long_Unsigned;
+ function I_SF (Stream : not null access RST) return Short_Float;
+ function I_SI (Stream : not null access RST) return Short_Integer;
+ function I_SSI (Stream : not null access RST) return Short_Short_Integer;
+ function I_SSU (Stream : not null access RST)
+ return UST.Short_Short_Unsigned;
+ function I_SU (Stream : not null access RST) return UST.Short_Unsigned;
+ function I_U (Stream : not null access RST) return UST.Unsigned;
+ function I_WC (Stream : not null access RST) return Wide_Character;
+ function I_WWC (Stream : not null access RST) return Wide_Wide_Character;
-----------------------
-- Output Procedures --
-- between 'Write and 'Output because there are no discriminants
-- or bounds to be written.
- procedure W_AD (Stream : access RST; Item : in Fat_Pointer);
- procedure W_AS (Stream : access RST; Item : in Thin_Pointer);
- procedure W_B (Stream : access RST; Item : in Boolean);
- procedure W_C (Stream : access RST; Item : in Character);
- procedure W_F (Stream : access RST; Item : in Float);
- procedure W_I (Stream : access RST; Item : in Integer);
- procedure W_LF (Stream : access RST; Item : in Long_Float);
- procedure W_LI (Stream : access RST; Item : in Long_Integer);
- procedure W_LLF (Stream : access RST; Item : in Long_Long_Float);
- procedure W_LLI (Stream : access RST; Item : in Long_Long_Integer);
- procedure W_LLU (Stream : access RST; Item : in UST.Long_Long_Unsigned);
- procedure W_LU (Stream : access RST; Item : in UST.Long_Unsigned);
- procedure W_SF (Stream : access RST; Item : in Short_Float);
- procedure W_SI (Stream : access RST; Item : in Short_Integer);
- procedure W_SSI (Stream : access RST; Item : in Short_Short_Integer);
- procedure W_SSU (Stream : access RST; Item : in UST.Short_Short_Unsigned);
- procedure W_SU (Stream : access RST; Item : in UST.Short_Unsigned);
- procedure W_U (Stream : access RST; Item : in UST.Unsigned);
- procedure W_WC (Stream : access RST; Item : in Wide_Character);
-
- ----------------------------
- -- Composite Input/Output --
- ----------------------------
-
- -- The following Boolean constant is defined and set to True only if the
- -- stream representation of a series of elementary items of the same
- -- type (one of the types handled by the above procedures) has the same
- -- representation as an array of such items in memory. This allows such
- -- a series of items to be read or written as a block, instead of
- -- element by element.
-
- -- If the stream representation does not have this property for all the
- -- above types, then this constant can be omitted or set to False,
- -- and the front end will generate element-by-element operations.
-
- -- This interface assumes that a Stream_Element has the same size as
- -- a Storage_Unit. If that is not the case, then this flag should
- -- also be omitted (or set to False).
-
- Block_Stream_Ops_OK : constant Boolean := True;
- -- Set to False if block stream operations not permitted
+ procedure W_AD (Stream : not null access RST; Item : Fat_Pointer);
+ procedure W_AS (Stream : not null access RST; Item : Thin_Pointer);
+ procedure W_B (Stream : not null access RST; Item : Boolean);
+ procedure W_C (Stream : not null access RST; Item : Character);
+ procedure W_F (Stream : not null access RST; Item : Float);
+ procedure W_I (Stream : not null access RST; Item : Integer);
+ procedure W_LF (Stream : not null access RST; Item : Long_Float);
+ procedure W_LI (Stream : not null access RST; Item : Long_Integer);
+ procedure W_LLF (Stream : not null access RST; Item : Long_Long_Float);
+ procedure W_LLI (Stream : not null access RST; Item : Long_Long_Integer);
+ procedure W_LLU (Stream : not null access RST;
+ Item : UST.Long_Long_Unsigned);
+ procedure W_LU (Stream : not null access RST; Item : UST.Long_Unsigned);
+ procedure W_SF (Stream : not null access RST; Item : Short_Float);
+ procedure W_SI (Stream : not null access RST; Item : Short_Integer);
+ procedure W_SSI (Stream : not null access RST;
+ Item : Short_Short_Integer);
+ procedure W_SSU (Stream : not null access RST;
+ Item : UST.Short_Short_Unsigned);
+ procedure W_SU (Stream : not null access RST;
+ Item : UST.Short_Unsigned);
+ procedure W_U (Stream : not null access RST; Item : UST.Unsigned);
+ procedure W_WC (Stream : not null access RST; Item : Wide_Character);
+ procedure W_WWC (Stream : not null access RST; Item : Wide_Wide_Character);
+
+ function Block_IO_OK return Boolean;
+ -- Package System.Stream_Attributes has several bodies - the default one
+ -- distributed with GNAT, s-strxdr.adb which is based on the XDR standard
+ -- and s-stratt.adb for Garlic. All three bodies share the same spec. The
+ -- role of this function is to determine whether the current version of
+ -- System.Stream_Attributes is able to support block IO.
private
pragma Inline (I_AD);
pragma Inline (I_SU);
pragma Inline (I_U);
pragma Inline (I_WC);
+ pragma Inline (I_WWC);
pragma Inline (W_AD);
pragma Inline (W_AS);
pragma Inline (W_SU);
pragma Inline (W_U);
pragma Inline (W_WC);
+ pragma Inline (W_WWC);
+
+ pragma Inline (Block_IO_OK);
end System.Stream_Attributes;
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