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More tests, and fixed none negative bigint xor

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This commit is contained in:
Jimmi Holst Christensen
2018-01-17 14:31:47 +01:00
parent db0fc32ab2
commit fa2c3be341
2 changed files with 28 additions and 8 deletions
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6
src/bigint.cpp
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@@ -1295,14 +1295,16 @@ void bigint_xor(BigInt *dest, const BigInt *op1, const BigInt *op2) {
dest->is_negative = false;
const uint64_t *op1_digits = bigint_ptr(op1);
const uint64_t *op2_digits = bigint_ptr(op2);
assert(op1->digit_count > 0 && op2->digit_count > 0);
uint64_t first_digit = op1_digits[0] ^ op2_digits[0];
if (op1->digit_count == 1 && op2->digit_count == 1) {
dest->digit_count = 1;
dest->data.digit = op1_digits[0] ^ op2_digits[0];
dest->data.digit = first_digit;
bigint_normalize(dest);
return;
}
// TODO this code path is untested
uint64_t first_digit = dest->data.digit;
dest->digit_count = max(op1->digit_count, op2->digit_count);
dest->data.digits = allocate_nonzero<uint64_t>(dest->digit_count);
dest->data.digits[0] = first_digit;