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ARROW-8438: [C++] Fix crash in io-memory-benchmark #6929

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ARROW-8438: [C++] Fix crash in io-memory-benchmark #6929

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4 changes: 2 additions & 2 deletions cpp/src/arrow/io/memory_benchmark.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -295,12 +295,12 @@ static void ParallelMemoryCopy(benchmark::State& state) { // NOLINT non-const r
const int64_t buffer_size = kMemoryPerCore;

auto src = *AllocateBuffer(buffer_size);
auto dst = *AllocateBuffer(buffer_size);
std::shared_ptr<Buffer> dst = *AllocateBuffer(buffer_size);

random_bytes(buffer_size, 0, src->mutable_data());

while (state.KeepRunning()) {
io::FixedSizeBufferWriter writer(std::move(dst));
io::FixedSizeBufferWriter writer(dst);
writer.set_memcopy_threads(static_cast<int>(n_threads));
ABORT_NOT_OK(writer.Write(src->data(), src->size()));
}
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