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Resize underlying vector only pos_offset == vector.size()

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auxten 2023-06-04 17:44:29 +08:00 committed by GitHub
parent 07a6e49941
commit db806bd394
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1 changed files with 4 additions and 1 deletions
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src/IO/WriteBufferFromVector.h
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@ -86,7 +86,10 @@ private:
size_t old_size = vector.size();
/// pos may not be equal to vector.data() + old_size, because WriteBuffer::next() can be used to flush data
size_t pos_offset = pos - reinterpret_cast<Position>(vector.data());
vector.resize(old_size * size_multiplier);
if (pos_offset == vector.size())
{
vector.resize(old_size * size_multiplier);
}
internal_buffer = Buffer(reinterpret_cast<Position>(vector.data() + pos_offset), reinterpret_cast<Position>(vector.data() + vector.size()));
working_buffer = internal_buffer;
}