Commit graph

35 commits

Author SHA1 Message Date
Tim Ledbetter
48a3a02238 LibCrypto: Make constructing a BigInteger from string fallible
Previously, constructing a `UnsignedBigInteger::from_base()` could
produce an incorrect result if the input string contained a valid
Base36 digit that was out of range of the given base. The same method
would also crash if the input string contained an invalid Base36 digit.
An error is now returned in both these cases.

Constructing a BigFraction from string is now also fallible, so that we
can handle the case where we are given an input string with invalid
digits.
2024-01-13 19:01:35 -07:00
Ali Mohammad Pur
5e1499d104 Everywhere: Rename {Deprecated => Byte}String
This commit un-deprecates DeprecatedString, and repurposes it as a byte
string.
As the null state has already been removed, there are no other
particularly hairy blockers in repurposing this type as a byte string
(what it _really_ is).

This commit is auto-generated:
  $ xs=$(ack -l \bDeprecatedString\b\|deprecated_string AK Userland \
    Meta Ports Ladybird Tests Kernel)
  $ perl -pie 's/\bDeprecatedString\b/ByteString/g;
    s/deprecated_string/byte_string/g' $xs
  $ clang-format --style=file -i \
    $(git diff --name-only | grep \.cpp\|\.h)
  $ gn format $(git ls-files '*.gn' '*.gni')
2023-12-17 18:25:10 +03:30
Timothy Flynn
c911781c21 Everywhere: Remove needless trailing semi-colons after functions
This is a new option in clang-format-16.
2023-07-08 10:32:56 +01:00
Timothy Flynn
3ad1f250e7 LibCrypto: Define *BigInteger::to_base to convert big integers to String 2023-01-15 01:00:20 +00:00
Timothy Flynn
0ddc2e1f50 LibCrypto+Everywhere: Rename *BigInteger::to_base to to_base_deprecated 2023-01-15 01:00:20 +00:00
Moustafa Raafat
ae2abcebbb Everywhere: Use C++ concepts instead of requires clauses 2022-12-09 11:25:30 +00:00
Linus Groh
6e19ab2bbc AK+Everywhere: Rename String to DeprecatedString
We have a new, improved string type coming up in AK (OOM aware, no null
state), and while it's going to use UTF-8, the name UTF8String is a
mouthful - so let's free up the String name by renaming the existing
class.
Making the old one have an annoying name will hopefully also help with
quick adoption :^)
2022-12-06 08:54:33 +01:00
Linus Groh
d26aabff04 Everywhere: Run clang-format 2022-12-03 23:52:23 +00:00
Moustafa Raafat
54b8a2b094 LibCrypto: Add a way to compare UnsignedBigInteger with double
This patch also make SignedBigInteger::compare_to_double make use
of the new function.
2022-11-02 22:04:34 -06:00
Moustafa Raafat
cfd684dc2f LibCrypto: Add SignedBigInteger::is_positive() 2022-10-22 19:14:14 +02:00
Lucas CHOLLET
d589898f5b LibCrypto: Add SignedBigInteger::negated_value()
Return the negated value of the current number.
2022-09-15 14:08:21 +01:00
davidot
791855deab LibCrypto+LibJS: Remove the create_from methods from BigInteger
Instead we just use a specific constructor. With this set of
constructors using curly braces for constructing is highly recommended.
As then it will not do too many implicit conversions which could lead to
unexpected loss of data or calling the much slower double constructor.

Also to ensure we don't feed (Un)SignedBigInteger infinities we throw
RangeError earlier for Durations.
2022-08-26 19:18:26 +01:00
davidot
528891bf69 LibCrypto: Add a constructor to (Un)SignedBigInteger taking a double
For now this will assume that the double given is exactly representable
as an integer, so no NaN, infinity or rounding.
2022-08-26 19:18:26 +01:00
davidot
c87d10365b LibCrypto: Make the constructors of (Un)SignedBigInteger templated
This means it can take any (un)signed word of size at most Word.
This means the constructor can be disambiguated if we were to add a
double constructor :^).

This requires a change in just one test.
2022-08-26 19:18:26 +01:00
davidot
77d71a5ffd LibCrypto: Add a rounding mode to UnsignedBigInteger::to_double
This allows using different options for rounding, like IEEE
roundTiesToEven, which is the mode that JS requires.

Also fix that the last word read from the bigint for the mantissa could
be shifted incorrectly leading to incorrect results.
2022-08-26 19:18:26 +01:00
davidot
b5c00830c2 LibCrypto: Add a way to compare a SignedBigInteger with a double
This supports any double value (except for NaNs) instead of having to
cast the double to some smaller type which doesn't work for very large
values.
2022-08-24 23:27:17 +01:00
Timothy Flynn
440d185666 LibCrypto: Expose UnsignedBigInteger's is_zero() in SignedBigInteger
Note we don't need to check the sign because negative zero became
disallowed in b0d6399f60.
2022-07-18 08:51:07 +01:00
Lucas CHOLLET
dab814ea11 LibCrypto: Add the [[nodiscard]] qualifier in both BigInteger classes 2022-07-09 15:55:32 +00:00
Idan Horowitz
086969277e Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Timothy Flynn
b0d6399f60 LibCrypto: Do not allow signed big integers to be negative zero
If a big integer were to become negative zero, set the sign to instead
be positive. This prevents odd scenarios where users of signed big ints
would falsely think the result of some big int arithmetic is negative.
2022-02-06 15:49:54 +00:00
Nico Weber
2392f65345 LibCrypto: Remove some now-unused (and incorrect) methods
Removes the UnsignedBigInteger overloads of
SignedBigInteger::binary_{and,or,xor}(). They're now unused, and they
also didn't work when *this was negative.
2022-01-18 20:04:06 +03:30
Nico Weber
ec37eadb39 LibCrypto: Add Formatter<SignedBigInteger>
Useful for seeing SignedBigInteger values in test failure messages.
2022-01-18 20:04:06 +03:30
Andreas Kling
8b1108e485 Everywhere: Pass AK::StringView by value 2021-11-11 01:27:46 +01:00
Idan Horowitz
bcdad57670 LibCrypto: Add naive implementation of {Un,}SignedBigInteger::to_double 2021-09-06 22:15:39 +01:00
Idan Horowitz
ff6ca0f02d LibCrypto: Add operator<= and operator>= to SignedBigInteger 2021-07-19 09:11:20 +01:00
Linus Groh
89641d90db LibCrypto: Add operator>() to UnsignedBigInteger and SignedBigInteger
Piggybacking on operator!=() and operator<().
2021-07-07 19:00:42 +01:00
Idan Horowitz
005d75656e LibCrypto: Replace from_base{2,8,10,16}() & to_base10 with from_base(N)
This allows us to support parsing and serializing BigIntegers to and
from any base N (such that 2 <= N <= 36).
2021-06-29 16:55:54 +01:00
Idan Horowitz
2ad2e055e2 LibCrypto: Add {Signed,Unsigned}BigInteger::from_base{2, 8, 16} helpers
These can be used to create BigInteger instances from non-decimal
number strings.
2021-06-14 01:45:04 +01:00
Idan Horowitz
d7a70eb77c LibJS: Add all of the DataView.prototype.set* methods 2021-06-14 01:45:04 +01:00
Idan Horowitz
c54b9a6920 LibJS: Add all of the DataView.prototype.get* methods 2021-06-14 01:45:04 +01:00
Idan Horowitz
b17a282b4b LibCrypto: Add hash methods to {Signed, Unsigned}BigInteger
These just use hash the underlying bytes that make up the integer words
2021-06-09 11:48:04 +01:00
Brian Gianforcaro
1682f0b760 Everything: Move to SPDX license identifiers in all files.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.

See: https://spdx.dev/resources/use/#identifiers

This was done with the `ambr` search and replace tool.

 ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
2021-04-22 11:22:27 +02:00
Andreas Kling
ef1e5db1d0 Everywhere: Remove klog(), dbg() and purge all LogStream usage :^)
Good-bye LogStream. Long live AK::Format!
2021-03-12 17:29:37 +01:00
Linus Groh
e265054c12 Everywhere: Remove a bunch of redundant 'AK::' namespace prefixes
This is basically just for consistency, it's quite strange to see
multiple AK container types next to each other, some with and some
without the namespace prefix - we're 'using AK::Foo;' a lot and should
leverage that. :^)
2021-02-26 16:59:56 +01:00
Andreas Kling
13d7c09125 Libraries: Move to Userland/Libraries/ 2021-01-12 12:17:46 +01:00
Renamed from Libraries/LibCrypto/BigInt/SignedBigInteger.h (Browse further)