1------------------------------------------------------------------------------ 2-- -- 3-- GNAT COMPILER COMPONENTS -- 4-- -- 5-- I N T E R F A C E S -- 6-- -- 7-- S p e c -- 8-- -- 9-- Copyright (C) 2002-2021, Free Software Foundation, Inc. -- 10-- -- 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. -- 14-- -- 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. -- 21-- -- 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. -- 25-- -- 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/>. -- 30-- -- 31-- GNAT was originally developed by the GNAT team at New York University. -- 32-- Extensive contributions were provided by Ada Core Technologies Inc. -- 33-- -- 34------------------------------------------------------------------------------ 35 36-- This is the runtime version of this unit (not used during GNAT build) 37 38package Interfaces is 39 pragma No_Elaboration_Code_All; 40 pragma Pure; 41 42 -- All identifiers in this unit are implementation defined 43 44 pragma Implementation_Defined; 45 46 type Integer_8 is range -2 ** 7 .. 2 ** 7 - 1; 47 for Integer_8'Size use 8; 48 49 type Integer_16 is range -2 ** 15 .. 2 ** 15 - 1; 50 for Integer_16'Size use 16; 51 52 type Integer_32 is range -2 ** 31 .. 2 ** 31 - 1; 53 for Integer_32'Size use 32; 54 55 type Integer_64 is new Long_Long_Integer; 56 for Integer_64'Size use 64; 57 -- Note: we use Long_Long_Integer'First instead of -2 ** 63 to allow this 58 -- unit to compile when using custom target configuration files where the 59 -- maximum integer is 32 bits. This is useful for static analysis tools 60 -- such as SPARK or CodePeer. In the normal case Long_Long_Integer is 61 -- always 64-bits so we get the desired 64-bit type. 62 63 type Integer_128 is new Long_Long_Long_Integer; 64 -- Note: we use Long_Long_Long_Integer instead of literal bounds to allow 65 -- this unit to be compiled with compilers not supporting 128-bit integers. 66 -- We do not put a confirming size clause of 128 bits for the same reason. 67 68 type Unsigned_8 is mod 2 ** 8; 69 for Unsigned_8'Size use 8; 70 71 type Unsigned_16 is mod 2 ** 16; 72 for Unsigned_16'Size use 16; 73 74 type Unsigned_24 is mod 2 ** 24; 75 for Unsigned_24'Size use 24; 76 -- Declare this type for compatibility with legacy Ada compilers. 77 -- This is particularly useful in the context of CodePeer analysis. 78 79 type Unsigned_32 is mod 2 ** 32; 80 for Unsigned_32'Size use 32; 81 82 type Unsigned_64 is mod 2 ** Long_Long_Integer'Size; 83 for Unsigned_64'Size use 64; 84 -- See comment on Integer_64 above 85 86 type Unsigned_128 is mod 2 ** Long_Long_Long_Integer'Size; 87 -- See comment on Integer_128 above 88 89 function Shift_Left 90 (Value : Unsigned_8; 91 Amount : Natural) return Unsigned_8 92 with Import, Convention => Intrinsic, Static; 93 94 function Shift_Right 95 (Value : Unsigned_8; 96 Amount : Natural) return Unsigned_8 97 with Import, Convention => Intrinsic, Static; 98 99 function Shift_Right_Arithmetic 100 (Value : Unsigned_8; 101 Amount : Natural) return Unsigned_8 102 with Import, Convention => Intrinsic, Static; 103 104 function Rotate_Left 105 (Value : Unsigned_8; 106 Amount : Natural) return Unsigned_8 107 with Import, Convention => Intrinsic, Static; 108 109 function Rotate_Right 110 (Value : Unsigned_8; 111 Amount : Natural) return Unsigned_8 112 with Import, Convention => Intrinsic, Static; 113 114 function Shift_Left 115 (Value : Unsigned_16; 116 Amount : Natural) return Unsigned_16 117 with Import, Convention => Intrinsic, Static; 118 119 function Shift_Right 120 (Value : Unsigned_16; 121 Amount : Natural) return Unsigned_16 122 with Import, Convention => Intrinsic, Static; 123 124 function Shift_Right_Arithmetic 125 (Value : Unsigned_16; 126 Amount : Natural) return Unsigned_16 127 with Import, Convention => Intrinsic, Static; 128 129 function Rotate_Left 130 (Value : Unsigned_16; 131 Amount : Natural) return Unsigned_16 132 with Import, Convention => Intrinsic, Static; 133 134 function Rotate_Right 135 (Value : Unsigned_16; 136 Amount : Natural) return Unsigned_16 137 with Import, Convention => Intrinsic, Static; 138 139 function Shift_Left 140 (Value : Unsigned_32; 141 Amount : Natural) return Unsigned_32 142 with Import, Convention => Intrinsic, Static; 143 144 function Shift_Right 145 (Value : Unsigned_32; 146 Amount : Natural) return Unsigned_32 147 with Import, Convention => Intrinsic, Static; 148 149 function Shift_Right_Arithmetic 150 (Value : Unsigned_32; 151 Amount : Natural) return Unsigned_32 152 with Import, Convention => Intrinsic, Static; 153 154 function Rotate_Left 155 (Value : Unsigned_32; 156 Amount : Natural) return Unsigned_32 157 with Import, Convention => Intrinsic, Static; 158 159 function Rotate_Right 160 (Value : Unsigned_32; 161 Amount : Natural) return Unsigned_32 162 with Import, Convention => Intrinsic, Static; 163 164 function Shift_Left 165 (Value : Unsigned_64; 166 Amount : Natural) return Unsigned_64 167 with Import, Convention => Intrinsic, Static; 168 169 function Shift_Right 170 (Value : Unsigned_64; 171 Amount : Natural) return Unsigned_64 172 with Import, Convention => Intrinsic, Static; 173 174 function Shift_Right_Arithmetic 175 (Value : Unsigned_64; 176 Amount : Natural) return Unsigned_64 177 with Import, Convention => Intrinsic, Static; 178 179 function Rotate_Left 180 (Value : Unsigned_64; 181 Amount : Natural) return Unsigned_64 182 with Import, Convention => Intrinsic, Static; 183 184 function Rotate_Right 185 (Value : Unsigned_64; 186 Amount : Natural) return Unsigned_64 187 with Import, Convention => Intrinsic, Static; 188 189 function Shift_Left 190 (Value : Unsigned_128; 191 Amount : Natural) return Unsigned_128 192 with Import, Convention => Intrinsic, Static; 193 194 function Shift_Right 195 (Value : Unsigned_128; 196 Amount : Natural) return Unsigned_128 197 with Import, Convention => Intrinsic, Static; 198 199 function Shift_Right_Arithmetic 200 (Value : Unsigned_128; 201 Amount : Natural) return Unsigned_128 202 with Import, Convention => Intrinsic, Static; 203 204 function Rotate_Left 205 (Value : Unsigned_128; 206 Amount : Natural) return Unsigned_128 207 with Import, Convention => Intrinsic, Static; 208 209 function Rotate_Right 210 (Value : Unsigned_128; 211 Amount : Natural) return Unsigned_128 212 with Import, Convention => Intrinsic, Static; 213 214 -- IEEE Floating point types 215 216 type IEEE_Float_32 is digits 6; 217 for IEEE_Float_32'Size use 32; 218 219 type IEEE_Float_64 is digits 15; 220 for IEEE_Float_64'Size use 64; 221 222 -- If there is an IEEE extended float available on the machine, we assume 223 -- that it is available as Long_Long_Float. 224 225 -- Note: it is harmless, and explicitly permitted, to include additional 226 -- types in interfaces, so it is not wrong to have IEEE_Extended_Float 227 -- defined even if the extended format is not available. 228 229 type IEEE_Extended_Float is new Long_Long_Float; 230 231end Interfaces; 232