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LibCrypto+LibJS: Better bigint bitwise_and binop
Bitwise and is defined in terms of two's complement, so some converting needs to happen for SignedBigInteger's sign/magnitude representation to work out. UnsignedBigInteger::bitwise_not() is repurposed to convert all high-order zero bits to ones up to a limit, for the two's complement conversion to work. Fixes test262/test/language/expressions/bitwise-and/bigint.js.
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7 changed files with 52 additions and 23 deletions
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@ -87,7 +87,7 @@ public:
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UnsignedBigInteger bitwise_or(const UnsignedBigInteger& other) const;
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UnsignedBigInteger bitwise_and(const UnsignedBigInteger& other) const;
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UnsignedBigInteger bitwise_xor(const UnsignedBigInteger& other) const;
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UnsignedBigInteger bitwise_not() const;
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UnsignedBigInteger bitwise_not_fill_to_size(size_t) const;
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UnsignedBigInteger shift_left(size_t num_bits) const;
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UnsignedBigInteger multiplied_by(const UnsignedBigInteger& other) const;
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UnsignedDivisionResult divided_by(const UnsignedBigInteger& divisor) const;
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