File : fz_cmp.ads
1 ------------------------------------------------------------------------------
2 ------------------------------------------------------------------------------
3 -- This file is part of 'Finite Field Arithmetic', aka 'FFA'. --
4 -- --
5 -- (C) 2017 Stanislav Datskovskiy ( www.loper-os.org ) --
6 -- http://wot.deedbot.org/17215D118B7239507FAFED98B98228A001ABFFC7.html --
7 -- --
8 -- You do not have, nor can you ever acquire the right to use, copy or --
9 -- distribute this software ; Should you use this software for any purpose, --
10 -- or copy and distribute it to anyone or in any manner, you are breaking --
11 -- the laws of whatever soi-disant jurisdiction, and you promise to --
12 -- continue doing so for the indefinite future. In any case, please --
13 -- always : read and understand any software ; verify any PGP signatures --
14 -- that you use - for any purpose. --
15 -- --
16 -- See also http://trilema.com/2015/a-new-software-licensing-paradigm . --
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18 ------------------------------------------------------------------------------
19
20 with Words; use Words;
21 with FZ_Type; use FZ_Type;
22
23
24 package FZ_Cmp is
25
26 pragma Pure;
27
28 -------------------------------------------
29 -- Comparison Predicate Operations on FZ --
30 -------------------------------------------
31
32 -- 1 iff X == Y (branch-free); else 0
33 function FZ_EqP(X : in FZ; Y: in FZ) return WBool
34 with Pre => X'Length = Y'Length;
35
36 -- 1 iff X < Y (branch-free); else 0
37 function FZ_LessThanP(X : in FZ; Y : in FZ) return WBool
38 with Pre => X'Length = Y'Length;
39
40 -- 1 iff X > Y (branch-free); else 0
41 function FZ_GreaterThanP(X : in FZ; Y : in FZ) return WBool
42 with Pre => X'Length = Y'Length;
43
44 end FZ_Cmp;