------------------------------------------------------------------------------ | |

-- -- | |

-- GNAT COMPILER COMPONENTS -- | |

-- -- | |

-- I N T E R F A C E S -- | |

-- -- | |

-- S p e c -- | |

-- -- | |

-- Copyright (C) 2002-2022, Free Software Foundation, Inc. -- | |

-- -- | |

-- This specification is derived from the Ada Reference Manual for use with -- | |

-- GNAT. The copyright notice above, and the license provisions that follow -- | |

-- apply solely to the implementation dependent sections of this file. -- | |

-- -- | |

-- 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 -- | |

-- <http://www.gnu.org/licenses/>. -- | |

-- -- | |

-- GNAT was originally developed by the GNAT team at New York University. -- | |

-- Extensive contributions were provided by Ada Core Technologies Inc. -- | |

-- -- | |

------------------------------------------------------------------------------ | |

-- This is the runtime version of this unit (not used during GNAT build) | |

package Interfaces is | |

pragma No_Elaboration_Code_All; | |

pragma Pure; | |

-- All identifiers in this unit are implementation defined | |

pragma Implementation_Defined; | |

type Integer_8 is range -2 ** 7 .. 2 ** 7 - 1; | |

for Integer_8'Size use 8; | |

type Integer_16 is range -2 ** 15 .. 2 ** 15 - 1; | |

for Integer_16'Size use 16; | |

type Integer_32 is range -2 ** 31 .. 2 ** 31 - 1; | |

for Integer_32'Size use 32; | |

type Integer_64 is new Long_Long_Integer; | |

for Integer_64'Size use 64; | |

-- Note: we use Long_Long_Integer'First instead of -2 ** 63 to allow this | |

-- unit to compile when using custom target configuration files where the | |

-- maximum integer is 32 bits. This is useful for static analysis tools | |

-- such as SPARK or CodePeer. In the normal case Long_Long_Integer is | |

-- always 64-bits so we get the desired 64-bit type. | |

type Integer_128 is new Long_Long_Long_Integer; | |

-- Note: we use Long_Long_Long_Integer instead of literal bounds to allow | |

-- this unit to be compiled with compilers not supporting 128-bit integers. | |

-- We do not put a confirming size clause of 128 bits for the same reason. | |

type Unsigned_8 is mod 2 ** 8; | |

for Unsigned_8'Size use 8; | |

type Unsigned_16 is mod 2 ** 16; | |

for Unsigned_16'Size use 16; | |

type Unsigned_24 is mod 2 ** 24; | |

for Unsigned_24'Size use 24; | |

-- Declare this type for compatibility with legacy Ada compilers. | |

-- This is particularly useful in the context of CodePeer analysis. | |

type Unsigned_32 is mod 2 ** 32; | |

for Unsigned_32'Size use 32; | |

type Unsigned_64 is mod 2 ** Long_Long_Integer'Size; | |

for Unsigned_64'Size use 64; | |

-- See comment on Integer_64 above | |

type Unsigned_128 is mod 2 ** Long_Long_Long_Integer'Size; | |

-- See comment on Integer_128 above | |

function Shift_Left | |

(Value : Unsigned_8; | |

Amount : Natural) return Unsigned_8 | |

with Import, Convention => Intrinsic, Static; | |

function Shift_Right | |

(Value : Unsigned_8; | |

Amount : Natural) return Unsigned_8 | |

with Import, Convention => Intrinsic, Static; | |

function Shift_Right_Arithmetic | |

(Value : Unsigned_8; | |

Amount : Natural) return Unsigned_8 | |

with Import, Convention => Intrinsic, Static; | |

function Rotate_Left | |

(Value : Unsigned_8; | |

Amount : Natural) return Unsigned_8 | |

with Import, Convention => Intrinsic, Static; | |

function Rotate_Right | |

(Value : Unsigned_8; | |

Amount : Natural) return Unsigned_8 | |

with Import, Convention => Intrinsic, Static; | |

function Shift_Left | |

(Value : Unsigned_16; | |

Amount : Natural) return Unsigned_16 | |

with Import, Convention => Intrinsic, Static; | |

function Shift_Right | |

(Value : Unsigned_16; | |

Amount : Natural) return Unsigned_16 | |

with Import, Convention => Intrinsic, Static; | |

function Shift_Right_Arithmetic | |

(Value : Unsigned_16; | |

Amount : Natural) return Unsigned_16 | |

with Import, Convention => Intrinsic, Static; | |

function Rotate_Left | |

(Value : Unsigned_16; | |

Amount : Natural) return Unsigned_16 | |

with Import, Convention => Intrinsic, Static; | |

function Rotate_Right | |

(Value : Unsigned_16; | |

Amount : Natural) return Unsigned_16 | |

with Import, Convention => Intrinsic, Static; | |

function Shift_Left | |

(Value : Unsigned_32; | |

Amount : Natural) return Unsigned_32 | |

with Import, Convention => Intrinsic, Static; | |

function Shift_Right | |

(Value : Unsigned_32; | |

Amount : Natural) return Unsigned_32 | |

with Import, Convention => Intrinsic, Static; | |

function Shift_Right_Arithmetic | |

(Value : Unsigned_32; | |

Amount : Natural) return Unsigned_32 | |

with Import, Convention => Intrinsic, Static; | |

function Rotate_Left | |

(Value : Unsigned_32; | |

Amount : Natural) return Unsigned_32 | |

with Import, Convention => Intrinsic, Static; | |

function Rotate_Right | |

(Value : Unsigned_32; | |

Amount : Natural) return Unsigned_32 | |

with Import, Convention => Intrinsic, Static; | |

function Shift_Left | |

(Value : Unsigned_64; | |

Amount : Natural) return Unsigned_64 | |

with Import, Convention => Intrinsic, Static; | |

function Shift_Right | |

(Value : Unsigned_64; | |

Amount : Natural) return Unsigned_64 | |

with Import, Convention => Intrinsic, Static; | |

function Shift_Right_Arithmetic | |

(Value : Unsigned_64; | |

Amount : Natural) return Unsigned_64 | |

with Import, Convention => Intrinsic, Static; | |

function Rotate_Left | |

(Value : Unsigned_64; | |

Amount : Natural) return Unsigned_64 | |

with Import, Convention => Intrinsic, Static; | |

function Rotate_Right | |

(Value : Unsigned_64; | |

Amount : Natural) return Unsigned_64 | |

with Import, Convention => Intrinsic, Static; | |

function Shift_Left | |

(Value : Unsigned_128; | |

Amount : Natural) return Unsigned_128 | |

with Import, Convention => Intrinsic, Static; | |

function Shift_Right | |

(Value : Unsigned_128; | |

Amount : Natural) return Unsigned_128 | |

with Import, Convention => Intrinsic, Static; | |

function Shift_Right_Arithmetic | |

(Value : Unsigned_128; | |

Amount : Natural) return Unsigned_128 | |

with Import, Convention => Intrinsic, Static; | |

function Rotate_Left | |

(Value : Unsigned_128; | |

Amount : Natural) return Unsigned_128 | |

with Import, Convention => Intrinsic, Static; | |

function Rotate_Right | |

(Value : Unsigned_128; | |

Amount : Natural) return Unsigned_128 | |

with Import, Convention => Intrinsic, Static; | |

-- IEEE Floating point types | |

type IEEE_Float_32 is digits 6; | |

for IEEE_Float_32'Size use 32; | |

type IEEE_Float_64 is digits 15; | |

for IEEE_Float_64'Size use 64; | |

-- If there is an IEEE extended float available on the machine, we assume | |

-- that it is available as Long_Long_Float. | |

-- Note: it is harmless, and explicitly permitted, to include additional | |

-- types in interfaces, so it is not wrong to have IEEE_Extended_Float | |

-- defined even if the extended format is not available. | |

type IEEE_Extended_Float is new Long_Long_Float; | |

end Interfaces; |