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LibCrypto: Add a way to compare UnsignedBigInteger with double

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This patch also make SignedBigInteger::compare_to_double make use
of the new function.
This commit is contained in:
Moustafa Raafat 2022-10-23 16:46:35 +01:00 • committed by Andrew Kaster
parent e03f014e7a
commit 54b8a2b094
7 changed files with 259 additions and 158 deletions
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2
Userland/Libraries/LibJS/Runtime/Temporal/ZonedDateTime.cpp
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@ -557,7 +557,7 @@ ThrowCompletionOr<NanosecondsToDaysResult> nanoseconds_to_days(VM& vm, Crypto::S
// 23. If abs(nanoseconds) ≥ abs(dayLengthNs), throw a RangeError exception.
auto nanoseconds_absolute = nanoseconds.is_negative() ? nanoseconds.negated_value() : nanoseconds;
auto compare_result = nanoseconds_absolute.compare_to_double(fabs(day_length_ns.to_double()));
if (compare_result == Crypto::SignedBigInteger::CompareResult::DoubleLessThanBigInt || compare_result == Crypto::SignedBigInteger::CompareResult::DoubleEqualsBigInt)
if (compare_result == Crypto::UnsignedBigInteger::CompareResult::DoubleLessThanBigInt || compare_result == Crypto::UnsignedBigInteger::CompareResult::DoubleEqualsBigInt)
return vm.throw_completion<RangeError>(ErrorType::TemporalNanosecondsConvertedToRemainderOfNanosecondsLongerThanDayLength);
// 24. Return the Record { [[Days]]: days, [[Nanoseconds]]: nanoseconds, [[DayLength]]: abs(dayLengthNs) }.

6
Userland/Libraries/LibJS/Runtime/Value.cpp
View file

@ -1536,7 +1536,7 @@ ThrowCompletionOr<bool> is_loosely_equal(VM& vm, Value lhs, Value rhs)
auto& number_side = lhs.is_number() ? lhs : rhs;
auto& bigint_side = lhs.is_number() ? rhs : lhs;
return bigint_side.as_bigint().big_integer().compare_to_double(number_side.as_double()) == Crypto::SignedBigInteger::CompareResult::DoubleEqualsBigInt;
return bigint_side.as_bigint().big_integer().compare_to_double(number_side.as_double()) == Crypto::UnsignedBigInteger::CompareResult::DoubleEqualsBigInt;
}
// 14. Return false.
@ -1635,10 +1635,10 @@ ThrowCompletionOr<TriState> is_less_than(VM& vm, Value lhs, Value rhs, bool left
VERIFY(!x_numeric.is_nan() && !y_numeric.is_nan());
if (x_numeric.is_number()) {
x_lower_than_y = y_numeric.as_bigint().big_integer().compare_to_double(x_numeric.as_double())
== Crypto::SignedBigInteger::CompareResult::DoubleLessThanBigInt;
== Crypto::UnsignedBigInteger::CompareResult::DoubleLessThanBigInt;
} else {
x_lower_than_y = x_numeric.as_bigint().big_integer().compare_to_double(y_numeric.as_double())
== Crypto::SignedBigInteger::CompareResult::DoubleGreaterThanBigInt;
== Crypto::UnsignedBigInteger::CompareResult::DoubleGreaterThanBigInt;
}
if (x_lower_than_y)
return TriState::True;