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LibCrypto: Define *BigInteger::to_base to convert big integers to String
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5 changed files with 28 additions and 12 deletions
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@ -146,11 +146,11 @@ UnsignedBigInteger UnsignedBigInteger::from_base(u16 N, StringView str)
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return result;
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}
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DeprecatedString UnsignedBigInteger::to_base_deprecated(u16 N) const
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ErrorOr<String> UnsignedBigInteger::to_base(u16 N) const
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{
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VERIFY(N <= 36);
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if (*this == UnsignedBigInteger { 0 })
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return "0";
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return String::from_utf8("0"sv);
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StringBuilder builder;
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UnsignedBigInteger temp(*this);
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@ -160,11 +160,16 @@ DeprecatedString UnsignedBigInteger::to_base_deprecated(u16 N) const
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while (temp != UnsignedBigInteger { 0 }) {
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UnsignedBigIntegerAlgorithms::divide_u16_without_allocation(temp, N, quotient, remainder);
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VERIFY(remainder.words()[0] < N);
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builder.append(to_ascii_base36_digit(remainder.words()[0]));
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TRY(builder.try_append(to_ascii_base36_digit(remainder.words()[0])));
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temp.set_to(quotient);
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}
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return builder.to_deprecated_string().reverse();
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return TRY(builder.to_string()).reverse();
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}
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DeprecatedString UnsignedBigInteger::to_base_deprecated(u16 N) const
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{
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return MUST(to_base(N)).to_deprecated_string();
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}
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u64 UnsignedBigInteger::to_u64() const
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