1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
5 -- I N T E R F A C E S --
9 -- Copyright (C) 2002-2014, Free Software Foundation, Inc. --
11 -- This specification is derived from the Ada Reference Manual for use with --
12 -- GNAT. The copyright notice above, and the license provisions that follow --
13 -- apply solely to the implementation dependent sections of this file. --
15 -- GNAT is free software; you can redistribute it and/or modify it under --
16 -- terms of the GNU General Public License as published by the Free Soft- --
17 -- ware Foundation; either version 3, or (at your option) any later ver- --
18 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
19 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
20 -- or FITNESS FOR A PARTICULAR PURPOSE. --
22 -- As a special exception under Section 7 of GPL version 3, you are granted --
23 -- additional permissions described in the GCC Runtime Library Exception, --
24 -- version 3.1, as published by the Free Software Foundation. --
26 -- You should have received a copy of the GNU General Public License and --
27 -- a copy of the GCC Runtime Library Exception along with this program; --
28 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
29 -- <http://www.gnu.org/licenses/>. --
31 -- GNAT was originally developed by the GNAT team at New York University. --
32 -- Extensive contributions were provided by Ada Core Technologies Inc. --
34 ------------------------------------------------------------------------------
36 pragma Compiler_Unit_Warning
;
41 -- All identifiers in this unit are implementation defined
43 pragma Implementation_Defined
;
45 type Integer_8
is range -2 ** 7 .. 2 ** 7 - 1;
46 for Integer_8
'Size use 8;
48 type Integer_16
is range -2 ** 15 .. 2 ** 15 - 1;
49 for Integer_16
'Size use 16;
51 type Integer_32
is range -2 ** 31 .. 2 ** 31 - 1;
52 for Integer_32
'Size use 32;
54 type Integer_64
is range -2 ** 63 .. 2 ** 63 - 1;
55 for Integer_64
'Size use 64;
57 type Unsigned_8
is mod 2 ** 8;
58 for Unsigned_8
'Size use 8;
60 type Unsigned_16
is mod 2 ** 16;
61 for Unsigned_16
'Size use 16;
63 type Unsigned_32
is mod 2 ** 32;
64 for Unsigned_32
'Size use 32;
66 type Unsigned_64
is mod 2 ** 64;
67 for Unsigned_64
'Size use 64;
71 Amount
: Natural) return Unsigned_8
;
75 Amount
: Natural) return Unsigned_8
;
77 function Shift_Right_Arithmetic
79 Amount
: Natural) return Unsigned_8
;
83 Amount
: Natural) return Unsigned_8
;
87 Amount
: Natural) return Unsigned_8
;
91 Amount
: Natural) return Unsigned_16
;
95 Amount
: Natural) return Unsigned_16
;
97 function Shift_Right_Arithmetic
99 Amount
: Natural) return Unsigned_16
;
102 (Value
: Unsigned_16
;
103 Amount
: Natural) return Unsigned_16
;
105 function Rotate_Right
106 (Value
: Unsigned_16
;
107 Amount
: Natural) return Unsigned_16
;
110 (Value
: Unsigned_32
;
111 Amount
: Natural) return Unsigned_32
;
114 (Value
: Unsigned_32
;
115 Amount
: Natural) return Unsigned_32
;
117 function Shift_Right_Arithmetic
118 (Value
: Unsigned_32
;
119 Amount
: Natural) return Unsigned_32
;
122 (Value
: Unsigned_32
;
123 Amount
: Natural) return Unsigned_32
;
125 function Rotate_Right
126 (Value
: Unsigned_32
;
127 Amount
: Natural) return Unsigned_32
;
130 (Value
: Unsigned_64
;
131 Amount
: Natural) return Unsigned_64
;
134 (Value
: Unsigned_64
;
135 Amount
: Natural) return Unsigned_64
;
137 function Shift_Right_Arithmetic
138 (Value
: Unsigned_64
;
139 Amount
: Natural) return Unsigned_64
;
142 (Value
: Unsigned_64
;
143 Amount
: Natural) return Unsigned_64
;
145 function Rotate_Right
146 (Value
: Unsigned_64
;
147 Amount
: Natural) return Unsigned_64
;
149 pragma Import
(Intrinsic
, Shift_Left
);
150 pragma Import
(Intrinsic
, Shift_Right
);
151 pragma Import
(Intrinsic
, Shift_Right_Arithmetic
);
152 pragma Import
(Intrinsic
, Rotate_Left
);
153 pragma Import
(Intrinsic
, Rotate_Right
);
155 -- IEEE Floating point types
157 type IEEE_Float_32
is digits 6;
158 for IEEE_Float_32
'Size use 32;
160 type IEEE_Float_64
is digits 15;
161 for IEEE_Float_64
'Size use 64;
163 -- If there is an IEEE extended float available on the machine, we assume
164 -- that it is available as Long_Long_Float.
166 -- Note: it is harmless, and explicitly permitted, to include additional
167 -- types in interfaces, so it is not wrong to have IEEE_Extended_Float
168 -- defined even if the extended format is not available.
170 type IEEE_Extended_Float
is new Long_Long_Float;