------------------------------------------------------------------------------ -- -- -- 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 . X D R -- -- -- -- S p e c -- -- -- -- Copyright (C) 1992-2022, 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 -- -- . -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- This package contains alternate implementations of the stream attributes -- for elementary types based on the XDR standard. These are the subprograms -- that are directly accessed by occurrences of the stream attributes where -- the type is elementary. -- It is especially useful for exchanging streams between two different -- systems with different basic type representations and endianness. -- We only provide the subprograms for the standard base types. For user -- defined types, the subprogram for the corresponding root type is called -- with an appropriate conversion. package System.Stream_Attributes.XDR is pragma Preelaborate; pragma Suppress (Accessibility_Check, XDR); -- No need to check accessibility on arguments of subprograms --------------------- -- Input Functions -- --------------------- -- Functions for S'Input attribute. These functions are also used for -- S'Read, with the obvious transformation, since the input operation -- is the same for all elementary types (no bounds or discriminants -- are involved). 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_I24 (Stream : not null access RST) return Integer_24; 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_U24 (Stream : not null access RST) return Unsigned_24; 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 -- ----------------------- -- Procedures for S'Write attribute. These procedures are also used for -- 'Output, since for elementary types there is no difference between -- 'Write and 'Output because there are no discriminants or bounds to -- be written. 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_I24 (Stream : not null access RST; Item : Integer_24); 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_U24 (Stream : not null access RST; Item : Unsigned_24); procedure W_WC (Stream : not null access RST; Item : Wide_Character); procedure W_WWC (Stream : not null access RST; Item : Wide_Wide_Character); end System.Stream_Attributes.XDR;