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) 2002-2011, 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 36package Interfaces is 37 pragma Pure; 38 39 -- All identifiers in this unit are implementation defined 40 41 pragma Implementation_Defined; 42 43 type Integer_8 is range -2 ** 7 .. 2 ** 7 - 1; 44 for Integer_8'Size use 8; 45 46 type Integer_16 is range -2 ** 15 .. 2 ** 15 - 1; 47 for Integer_16'Size use 16; 48 49 type Integer_32 is range -2 ** 31 .. 2 ** 31 - 1; 50 for Integer_32'Size use 32; 51 52 type Integer_64 is range -2 ** 63 .. 2 ** 63 - 1; 53 for Integer_64'Size use 64; 54 55 type Unsigned_8 is mod 2 ** 8; 56 for Unsigned_8'Size use 8; 57 58 type Unsigned_16 is mod 2 ** 16; 59 for Unsigned_16'Size use 16; 60 61 type Unsigned_32 is mod 2 ** 32; 62 for Unsigned_32'Size use 32; 63 64 type Unsigned_64 is mod 2 ** 64; 65 for Unsigned_64'Size use 64; 66 67 function Shift_Left 68 (Value : Unsigned_8; 69 Amount : Natural) return Unsigned_8; 70 71 function Shift_Right 72 (Value : Unsigned_8; 73 Amount : Natural) return Unsigned_8; 74 75 function Shift_Right_Arithmetic 76 (Value : Unsigned_8; 77 Amount : Natural) return Unsigned_8; 78 79 function Rotate_Left 80 (Value : Unsigned_8; 81 Amount : Natural) return Unsigned_8; 82 83 function Rotate_Right 84 (Value : Unsigned_8; 85 Amount : Natural) return Unsigned_8; 86 87 function Shift_Left 88 (Value : Unsigned_16; 89 Amount : Natural) return Unsigned_16; 90 91 function Shift_Right 92 (Value : Unsigned_16; 93 Amount : Natural) return Unsigned_16; 94 95 function Shift_Right_Arithmetic 96 (Value : Unsigned_16; 97 Amount : Natural) return Unsigned_16; 98 99 function Rotate_Left 100 (Value : Unsigned_16; 101 Amount : Natural) return Unsigned_16; 102 103 function Rotate_Right 104 (Value : Unsigned_16; 105 Amount : Natural) return Unsigned_16; 106 107 function Shift_Left 108 (Value : Unsigned_32; 109 Amount : Natural) return Unsigned_32; 110 111 function Shift_Right 112 (Value : Unsigned_32; 113 Amount : Natural) return Unsigned_32; 114 115 function Shift_Right_Arithmetic 116 (Value : Unsigned_32; 117 Amount : Natural) return Unsigned_32; 118 119 function Rotate_Left 120 (Value : Unsigned_32; 121 Amount : Natural) return Unsigned_32; 122 123 function Rotate_Right 124 (Value : Unsigned_32; 125 Amount : Natural) return Unsigned_32; 126 127 function Shift_Left 128 (Value : Unsigned_64; 129 Amount : Natural) return Unsigned_64; 130 131 function Shift_Right 132 (Value : Unsigned_64; 133 Amount : Natural) return Unsigned_64; 134 135 function Shift_Right_Arithmetic 136 (Value : Unsigned_64; 137 Amount : Natural) return Unsigned_64; 138 139 function Rotate_Left 140 (Value : Unsigned_64; 141 Amount : Natural) return Unsigned_64; 142 143 function Rotate_Right 144 (Value : Unsigned_64; 145 Amount : Natural) return Unsigned_64; 146 147 pragma Import (Intrinsic, Shift_Left); 148 pragma Import (Intrinsic, Shift_Right); 149 pragma Import (Intrinsic, Shift_Right_Arithmetic); 150 pragma Import (Intrinsic, Rotate_Left); 151 pragma Import (Intrinsic, Rotate_Right); 152 153 -- IEEE Floating point types. Note that the form of these definitions 154 -- ensures that the work on VMS, even if the standard library is compiled 155 -- using a Float_Representation pragma for Vax_Float. 156 157 pragma Warnings (Off); 158 -- Turn off warnings for targets not providing IEEE floating-point types 159 160 type IEEE_Float_32 is digits 6; 161 pragma Float_Representation (IEEE_Float, IEEE_Float_32); 162 163 type IEEE_Float_64 is digits 15; 164 pragma Float_Representation (IEEE_Float, IEEE_Float_64); 165 166 -- If there is an IEEE extended float available on the machine, we assume 167 -- that it is available as Long_Long_Float. 168 169 -- Note: it is harmless, and explicitly permitted, to include additional 170 -- types in interfaces, so it is not wrong to have IEEE_Extended_Float 171 -- defined even if the extended format is not available. 172 173 type IEEE_Extended_Float is new Long_Long_Float; 174 175end Interfaces; 176