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8sa1-gcc/gcc/ada/s-stratt.adb
Robert Dewar 0ae9f22fde s-gloloc-mingw.adb, [...]: Minor reformatting. 
2006-02-13  Robert Dewar  <dewar@adacore.com>

	* s-gloloc-mingw.adb, a-cgaaso.ads, a-stzmap.adb, a-stzmap.adb,
	a-stzmap.ads, a-ztcoio.adb, a-ztedit.adb, a-ztedit.ads, a-ztenau.adb,
	a-ztenau.ads, a-colien.adb, a-colien.ads, a-colire.adb, a-colire.ads,
	a-comlin.adb, a-decima.adb, a-decima.ads, a-direio.adb, a-direio.adb,
	a-direio.adb, a-direio.ads, a-ngcoty.adb, a-ngcoty.ads, a-nuflra.adb,
	a-nuflra.ads, a-sequio.adb, a-sequio.ads, a-sequio.ads, a-storio.ads,
	a-stream.ads, a-ststio.adb, a-ststio.adb, a-ststio.ads, a-ststio.ads,
	a-stwima.adb, a-stwima.adb, a-stwima.ads, a-stwise.adb, a-teioed.adb,
	a-teioed.ads, a-ticoau.adb, a-ticoau.ads, a-ticoio.adb, a-tasatt.ads,
	a-tideau.adb, a-tideau.ads, a-tideio.adb, a-tideio.ads, a-tienau.adb,
	a-tienau.ads, a-tienio.adb, a-tienio.ads, a-tifiio.ads, a-tiflau.adb,
	a-tiflau.ads, a-tiflio.adb, a-tiflio.adb, a-tiflio.ads, a-tigeau.ads,
	a-tiinau.adb, a-tiinau.ads, a-tiinio.adb, a-tiinio.ads, a-timoio.adb,
	a-timoio.ads, a-titest.adb, a-titest.ads, a-wtcoio.adb, a-wtdeau.adb,
	a-wtdeau.ads, a-wtdeio.adb, a-wtdeio.ads, a-wtedit.adb, a-wtedit.adb,
	a-wtedit.ads, a-wtenau.adb, a-wtenau.ads, a-wtenau.ads, a-wtenio.adb,
	a-wtenio.ads, a-wtfiio.adb, a-wtfiio.ads, a-wtflau.adb, a-wtflau.ads,
	a-wtflio.adb, a-wtflio.adb, a-wtflio.ads, a-wtgeau.ads, a-wtinau.adb,
	a-wtinau.ads, a-wtinio.adb, a-wtinio.ads, a-wtmoau.adb, a-wtmoau.ads,
	a-wtmoio.adb, a-wtmoio.ads, xref_lib.adb, xref_lib.ads, xr_tabls.adb,
	g-boubuf.adb, g-boubuf.ads, g-cgideb.adb, g-io.adb, gnatdll.adb,
	g-pehage.adb, i-c.ads, g-spitbo.adb, g-spitbo.ads, mdll.adb,
	mlib-fil.adb, mlib-utl.adb, mlib-utl.ads, prj-env.adb, prj-tree.adb,
	prj-tree.ads, prj-util.adb, s-arit64.adb, s-asthan.ads, s-auxdec.adb,
	s-auxdec.ads, s-chepoo.ads, s-direio.adb, s-direio.ads, s-errrep.adb,
	s-errrep.ads, s-fileio.adb, s-fileio.ads, s-finroo.adb, s-finroo.ads,
	s-gloloc.adb, s-gloloc.ads, s-io.adb, s-io.ads, s-rpc.adb,
	s-rpc.ads, s-shasto.ads, s-sequio.adb, s-stopoo.ads, s-stratt.adb,
	s-stratt.ads, s-taasde.adb, s-taasde.ads, s-tadert.adb, s-sequio.ads,
	s-taskin.adb, s-tasque.adb, s-tasque.ads, s-wchjis.ads, makegpr.adb,
	a-coinve.adb, a-cidlli.adb, eval_fat.adb, exp_dist.ads, exp_smem.adb,
	fmap.adb, g-dyntab.ads, g-expect.adb, lib-xref.ads, osint.adb,
	par-load.adb, restrict.adb, sinput-c.ads, a-cdlili.adb,
	system-vms.ads, system-vms-zcx.ads, system-vms_64.ads: Minor
	reformatting.

From-SVN: r111023
2006-02-15 10:28:43 +01:00

669 lines
17 KiB
Ada
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------------------------------------------------------------------------------
-- --
-- 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 --
-- --
-- B o d y --
-- --
-- Copyright (C) 1992-2006, 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- --
-- 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, 51 Franklin Street, Fifth Floor, --
-- Boston, MA 02110-1301, USA. --
-- --
-- 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. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with Ada.IO_Exceptions;
with Ada.Streams; use Ada.Streams;
with Unchecked_Conversion;
package body System.Stream_Attributes is
Err : exception renames Ada.IO_Exceptions.End_Error;
-- Exception raised if insufficient data read (note that the RM implies
-- that Data_Error might be the appropriate choice, but AI95-00132
-- decides with a binding interpretation that End_Error is preferred).
SU : constant := System.Storage_Unit;
subtype SEA is Ada.Streams.Stream_Element_Array;
subtype SEO is Ada.Streams.Stream_Element_Offset;
generic function UC renames Unchecked_Conversion;
-- Subtypes used to define Stream_Element_Array values that map
-- into the elementary types, using unchecked conversion.
Thin_Pointer_Size : constant := System.Address'Size;
Fat_Pointer_Size : constant := System.Address'Size * 2;
subtype S_AD is SEA (1 .. (Fat_Pointer_Size + SU - 1) / SU);
subtype S_AS is SEA (1 .. (Thin_Pointer_Size + SU - 1) / SU);
subtype S_B is SEA (1 .. (Boolean'Size + SU - 1) / SU);
subtype S_C is SEA (1 .. (Character'Size + SU - 1) / SU);
subtype S_F is SEA (1 .. (Float'Size + SU - 1) / SU);
subtype S_I is SEA (1 .. (Integer'Size + SU - 1) / SU);
subtype S_LF is SEA (1 .. (Long_Float'Size + SU - 1) / SU);
subtype S_LI is SEA (1 .. (Long_Integer'Size + SU - 1) / SU);
subtype S_LLF is SEA (1 .. (Long_Long_Float'Size + SU - 1) / SU);
subtype S_LLI is SEA (1 .. (Long_Long_Integer'Size + SU - 1) / SU);
subtype S_LLU is SEA (1 .. (UST.Long_Long_Unsigned'Size + SU - 1) / SU);
subtype S_LU is SEA (1 .. (UST.Long_Unsigned'Size + SU - 1) / SU);
subtype S_SF is SEA (1 .. (Short_Float'Size + SU - 1) / SU);
subtype S_SI is SEA (1 .. (Short_Integer'Size + SU - 1) / SU);
subtype S_SSI is SEA (1 .. (Short_Short_Integer'Size + SU - 1) / SU);
subtype S_SSU is SEA (1 .. (UST.Short_Short_Unsigned'Size + SU - 1) / SU);
subtype S_SU is SEA (1 .. (UST.Short_Unsigned'Size + SU - 1) / SU);
subtype S_U is SEA (1 .. (UST.Unsigned'Size + SU - 1) / SU);
subtype S_WC is SEA (1 .. (Wide_Character'Size + SU - 1) / SU);
-- Unchecked conversions from the elementary type to the stream type
function From_AD is new UC (Fat_Pointer, S_AD);
function From_AS is new UC (Thin_Pointer, S_AS);
function From_F is new UC (Float, S_F);
function From_I is new UC (Integer, S_I);
function From_LF is new UC (Long_Float, S_LF);
function From_LI is new UC (Long_Integer, S_LI);
function From_LLF is new UC (Long_Long_Float, S_LLF);
function From_LLI is new UC (Long_Long_Integer, S_LLI);
function From_LLU is new UC (UST.Long_Long_Unsigned, S_LLU);
function From_LU is new UC (UST.Long_Unsigned, S_LU);
function From_SF is new UC (Short_Float, S_SF);
function From_SI is new UC (Short_Integer, S_SI);
function From_SSI is new UC (Short_Short_Integer, S_SSI);
function From_SSU is new UC (UST.Short_Short_Unsigned, S_SSU);
function From_SU is new UC (UST.Short_Unsigned, S_SU);
function From_U is new UC (UST.Unsigned, S_U);
function From_WC is new UC (Wide_Character, S_WC);
-- Unchecked conversions from the stream type to elementary type
function To_AD is new UC (S_AD, Fat_Pointer);
function To_AS is new UC (S_AS, Thin_Pointer);
function To_F is new UC (S_F, Float);
function To_I is new UC (S_I, Integer);
function To_LF is new UC (S_LF, Long_Float);
function To_LI is new UC (S_LI, Long_Integer);
function To_LLF is new UC (S_LLF, Long_Long_Float);
function To_LLI is new UC (S_LLI, Long_Long_Integer);
function To_LLU is new UC (S_LLU, UST.Long_Long_Unsigned);
function To_LU is new UC (S_LU, UST.Long_Unsigned);
function To_SF is new UC (S_SF, Short_Float);
function To_SI is new UC (S_SI, Short_Integer);
function To_SSI is new UC (S_SSI, Short_Short_Integer);
function To_SSU is new UC (S_SSU, UST.Short_Short_Unsigned);
function To_SU is new UC (S_SU, UST.Short_Unsigned);
function To_U is new UC (S_U, UST.Unsigned);
function To_WC is new UC (S_WC, Wide_Character);
----------
-- I_AD --
----------
function I_AD (Stream : not null access RST) return Fat_Pointer is
T : S_AD;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return To_AD (T);
end if;
end I_AD;
----------
-- I_AS --
----------
function I_AS (Stream : not null access RST) return Thin_Pointer is
T : S_AS;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return To_AS (T);
end if;
end I_AS;
---------
-- I_B --
---------
function I_B (Stream : not null access RST) return Boolean is
T : S_B;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return Boolean'Val (T (1));
end if;
end I_B;
---------
-- I_C --
---------
function I_C (Stream : not null access RST) return Character is
T : S_C;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return Character'Val (T (1));
end if;
end I_C;
---------
-- I_F --
---------
function I_F (Stream : not null access RST) return Float is
T : S_F;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return To_F (T);
end if;
end I_F;
---------
-- I_I --
---------
function I_I (Stream : not null access RST) return Integer is
T : S_I;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return To_I (T);
end if;
end I_I;
----------
-- I_LF --
----------
function I_LF (Stream : not null access RST) return Long_Float is
T : S_LF;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return To_LF (T);
end if;
end I_LF;
----------
-- I_LI --
----------
function I_LI (Stream : not null access RST) return Long_Integer is
T : S_LI;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return To_LI (T);
end if;
end I_LI;
-----------
-- I_LLF --
-----------
function I_LLF (Stream : not null access RST) return Long_Long_Float is
T : S_LLF;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return To_LLF (T);
end if;
end I_LLF;
-----------
-- I_LLI --
-----------
function I_LLI (Stream : not null access RST) return Long_Long_Integer is
T : S_LLI;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return To_LLI (T);
end if;
end I_LLI;
-----------
-- I_LLU --
-----------
function I_LLU
(Stream : not null access RST) return UST.Long_Long_Unsigned
is
T : S_LLU;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return To_LLU (T);
end if;
end I_LLU;
----------
-- I_LU --
----------
function I_LU (Stream : not null access RST) return UST.Long_Unsigned is
T : S_LU;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return To_LU (T);
end if;
end I_LU;
----------
-- I_SF --
----------
function I_SF (Stream : not null access RST) return Short_Float is
T : S_SF;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return To_SF (T);
end if;
end I_SF;
----------
-- I_SI --
----------
function I_SI (Stream : not null access RST) return Short_Integer is
T : S_SI;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return To_SI (T);
end if;
end I_SI;
-----------
-- I_SSI --
-----------
function I_SSI (Stream : not null access RST) return Short_Short_Integer is
T : S_SSI;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return To_SSI (T);
end if;
end I_SSI;
-----------
-- I_SSU --
-----------
function I_SSU
(Stream : not null access RST) return UST.Short_Short_Unsigned
is
T : S_SSU;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return To_SSU (T);
end if;
end I_SSU;
----------
-- I_SU --
----------
function I_SU (Stream : not null access RST) return UST.Short_Unsigned is
T : S_SU;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return To_SU (T);
end if;
end I_SU;
---------
-- I_U --
---------
function I_U (Stream : not null access RST) return UST.Unsigned is
T : S_U;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return To_U (T);
end if;
end I_U;
----------
-- I_WC --
----------
function I_WC (Stream : not null access RST) return Wide_Character is
T : S_WC;
L : SEO;
begin
Ada.Streams.Read (Stream.all, T, L);
if L < T'Last then
raise Err;
else
return To_WC (T);
end if;
end I_WC;
----------
-- W_AD --
----------
procedure W_AD (Stream : not null access RST; Item : Fat_Pointer) is
T : constant S_AD := From_AD (Item);
begin
Ada.Streams.Write (Stream.all, T);
end W_AD;
----------
-- W_AS --
----------
procedure W_AS (Stream : not null access RST; Item : Thin_Pointer) is
T : constant S_AS := From_AS (Item);
begin
Ada.Streams.Write (Stream.all, T);
end W_AS;
---------
-- W_B --
---------
procedure W_B (Stream : not null access RST; Item : Boolean) is
T : S_B;
begin
T (1) := Boolean'Pos (Item);
Ada.Streams.Write (Stream.all, T);
end W_B;
---------
-- W_C --
---------
procedure W_C (Stream : not null access RST; Item : Character) is
T : S_C;
begin
T (1) := Character'Pos (Item);
Ada.Streams.Write (Stream.all, T);
end W_C;
---------
-- W_F --
---------
procedure W_F (Stream : not null access RST; Item : Float) is
T : constant S_F := From_F (Item);
begin
Ada.Streams.Write (Stream.all, T);
end W_F;
---------
-- W_I --
---------
procedure W_I (Stream : not null access RST; Item : Integer) is
T : constant S_I := From_I (Item);
begin
Ada.Streams.Write (Stream.all, T);
end W_I;
----------
-- W_LF --
----------
procedure W_LF (Stream : not null access RST; Item : Long_Float) is
T : constant S_LF := From_LF (Item);
begin
Ada.Streams.Write (Stream.all, T);
end W_LF;
----------
-- W_LI --
----------
procedure W_LI (Stream : not null access RST; Item : Long_Integer) is
T : constant S_LI := From_LI (Item);
begin
Ada.Streams.Write (Stream.all, T);
end W_LI;
-----------
-- W_LLF --
-----------
procedure W_LLF (Stream : not null access RST; Item : Long_Long_Float) is
T : constant S_LLF := From_LLF (Item);
begin
Ada.Streams.Write (Stream.all, T);
end W_LLF;
-----------
-- W_LLI --
-----------
procedure W_LLI
(Stream : not null access RST; Item : Long_Long_Integer)
is
T : constant S_LLI := From_LLI (Item);
begin
Ada.Streams.Write (Stream.all, T);
end W_LLI;
-----------
-- W_LLU --
-----------
procedure W_LLU
(Stream : not null access RST; Item : UST.Long_Long_Unsigned)
is
T : constant S_LLU := From_LLU (Item);
begin
Ada.Streams.Write (Stream.all, T);
end W_LLU;
----------
-- W_LU --
----------
procedure W_LU
(Stream : not null access RST; Item : UST.Long_Unsigned)
is
T : constant S_LU := From_LU (Item);
begin
Ada.Streams.Write (Stream.all, T);
end W_LU;
----------
-- W_SF --
----------
procedure W_SF (Stream : not null access RST; Item : Short_Float) is
T : constant S_SF := From_SF (Item);
begin
Ada.Streams.Write (Stream.all, T);
end W_SF;
----------
-- W_SI --
----------
procedure W_SI (Stream : not null access RST; Item : Short_Integer) is
T : constant S_SI := From_SI (Item);
begin
Ada.Streams.Write (Stream.all, T);
end W_SI;
-----------
-- W_SSI --
-----------
procedure W_SSI
(Stream : not null access RST; Item : Short_Short_Integer)
is
T : constant S_SSI := From_SSI (Item);
begin
Ada.Streams.Write (Stream.all, T);
end W_SSI;
-----------
-- W_SSU --
-----------
procedure W_SSU
(Stream : not null access RST; Item : UST.Short_Short_Unsigned)
is
T : constant S_SSU := From_SSU (Item);
begin
Ada.Streams.Write (Stream.all, T);
end W_SSU;
----------
-- W_SU --
----------
procedure W_SU
(Stream : not null access RST; Item : UST.Short_Unsigned)
is
T : constant S_SU := From_SU (Item);
begin
Ada.Streams.Write (Stream.all, T);
end W_SU;
---------
-- W_U --
---------
procedure W_U (Stream : not null access RST; Item : UST.Unsigned) is
T : constant S_U := From_U (Item);
begin
Ada.Streams.Write (Stream.all, T);
end W_U;
----------
-- W_WC --
----------
procedure W_WC (Stream : not null access RST; Item : Wide_Character) is
T : constant S_WC := From_WC (Item);
begin
Ada.Streams.Write (Stream.all, T);
end W_WC;
end System.Stream_Attributes;
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