1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
5 -- S Y S T E M . V A L _ L L I --
9 -- Copyright (C) 1992-2024, Free Software Foundation, Inc. --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
18 -- As a special exception under Section 7 of GPL version 3, you are granted --
19 -- additional permissions described in the GCC Runtime Library Exception, --
20 -- version 3.1, as published by the Free Software Foundation. --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
27 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
30 ------------------------------------------------------------------------------
32 -- This package contains routines for scanning signed Long_Long_Integer
33 -- values for use in Text_IO.Integer_IO, and the Value attribute.
35 -- Preconditions in this unit are meant for analysis only, not for run-time
36 -- checking, so that the expected exceptions are raised. This is enforced by
37 -- setting the corresponding assertion policy to Ignore. Postconditions and
38 -- contract cases should not be executed at runtime as well, in order not to
39 -- slow down the execution of these functions.
41 pragma Assertion_Policy
(Pre
=> Ignore
,
43 Contract_Cases
=> Ignore
,
45 Subprogram_Variant
=> Ignore
);
47 with System
.Unsigned_Types
;
53 package System
.Val_LLI
with SPARK_Mode
is
56 subtype Long_Long_Unsigned
is Unsigned_Types
.Long_Long_Unsigned
;
58 package Impl
is new Value_I
59 (Int
=> Long_Long_Integer,
60 Uns
=> Long_Long_Unsigned
,
61 Scan_Raw_Unsigned
=> Val_LLU
.Scan_Raw_Long_Long_Unsigned
,
62 U_Spec
=> System
.Vs_LLU
.Spec
,
63 Spec
=> System
.Vs_LLI
.Spec
);
65 procedure Scan_Long_Long_Integer
67 Ptr
: not null access Integer;
69 Res
: out Long_Long_Integer)
70 renames Impl
.Scan_Integer
;
72 function Value_Long_Long_Integer
(Str
: String) return Long_Long_Integer
73 renames Impl
.Value_Integer
;