spielwiese
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Last change
on this file since 6ce030f was
287cc8,
checked in by Hans Schönemann <hannes@…>, 14 years ago
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ntl 5.5.2
git-svn-id: file:///usr/local/Singular/svn/trunk@12402 2c84dea3-7e68-4137-9b89-c4e89433aadc
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-
Property mode set to
100644
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File size:
610 bytes
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| 1 | |
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| 2 | #include <NTL/GF2.h> |
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| 3 | |
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| 4 | #include <NTL/new.h> |
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| 5 | |
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| 6 | NTL_START_IMPL |
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| 7 | |
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| 8 | |
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| 9 | void div(GF2& x, GF2 a, GF2 b) |
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| 10 | { |
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| 11 | if (b == 0) Error("GF2: division by zero"); |
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| 12 | x = a; |
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| 13 | } |
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| 14 | |
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| 15 | void div(GF2& x, long a, GF2 b) |
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| 16 | { |
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| 17 | if (b == 0) Error("GF2: division by zero"); |
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| 18 | x = a; |
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| 19 | } |
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| 20 | |
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| 21 | void div(GF2& x, GF2 a, long b) |
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| 22 | { |
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| 23 | if ((b & 1) == 0) Error("GF2: division by zero"); |
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| 24 | x = a; |
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| 25 | } |
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| 26 | |
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| 27 | void inv(GF2& x, GF2 a) |
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| 28 | { |
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| 29 | if (a == 0) Error("GF2: division by zero"); |
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| 30 | x = a; |
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| 31 | } |
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| 32 | |
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| 33 | void power(GF2& x, GF2 a, long e) |
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| 34 | { |
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| 35 | if (e == 0) { |
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| 36 | x = 1; |
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| 37 | return; |
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| 38 | } |
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| 39 | |
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| 40 | if (e < 0 && a == 0) |
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| 41 | Error("GF2: division by zero"); |
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| 42 | |
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| 43 | x = a; |
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| 44 | } |
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| 45 | |
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| 46 | NTL_END_IMPL |
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