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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.
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11 changed files with 68 additions and 57 deletions
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@ -63,7 +63,7 @@ public:
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size_t export_data(Bytes, bool remove_leading_zeros = false) const;
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[[nodiscard]] static SignedBigInteger from_base(u16 N, StringView str);
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[[nodiscard]] static ErrorOr<SignedBigInteger> from_base(u16 N, StringView str);
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[[nodiscard]] ErrorOr<String> to_base(u16 N) const;
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[[nodiscard]] ByteString to_base_deprecated(u16 N) const;
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@ -171,5 +171,5 @@ struct AK::Formatter<Crypto::SignedBigInteger> : AK::Formatter<Crypto::UnsignedB
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inline Crypto::SignedBigInteger
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operator""_sbigint(char const* string, size_t length)
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{
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return Crypto::SignedBigInteger::from_base(10, { string, length });
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return MUST(Crypto::SignedBigInteger::from_base(10, { string, length }));
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}
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