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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "partialbitvector.h"
#include <cstring>
namespace search {
using vespalib::alloc::Alloc;
PartialBitVector::PartialBitVector(Index start, Index end) :
BitVector(),
_alloc(allocatePaddedAndAligned(start, end))
{
init(_alloc.get(), start, end);
clear();
}
PartialBitVector::PartialBitVector(const BitVector & org, Index start, Index end) :
BitVector(),
_alloc(allocatePaddedAndAligned(start, end))
{
init(_alloc.get(), start, end);
Range range = sanitize(org.range());
if (range.validNonZero()) {
const Word *startWord = org.getWordIndex(range.start());
size_t numBytes2Copy = numActiveBytes(range.start(), range.end());
memcpy(getWordIndex(range.start()), startWord, numBytes2Copy);
if (range.end() < end) {
clearInterval(range.end(), end);
}
if (start < range.start()) {
clearInterval(start, range.start());
}
} else {
clear();
}
set_bit_no_range_check(size());
}
PartialBitVector::~PartialBitVector() = default;
} // namespace search
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