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LibCrypto: Avoid UB in BigFraction::to_byte_string for 0/x fractions
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@ -213,7 +213,7 @@ ByteString BigFraction::to_byte_string(unsigned rounding_threshold) const
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auto const remove_trailing_zeros = [](StringView value) -> StringView {
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auto n = value.length();
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VERIFY(n > 0);
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while (value.characters_without_null_termination()[n - 1] == '0')
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while (n > 0 && value.characters_without_null_termination()[n - 1] == '0')
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--n;
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return { value.characters_without_null_termination(), n };
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};
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