{

const std::string string(1000, 'a');

const std::string_view stringView{ string };

StringPool<char> pool;

std::mutex poolMutex;

std::vector<std::string_view> strings;

std::vector<std::future<void>> futures;

for (std::size_t i = 0; i < 1000; ++i) {

futures.push_back(std::async(std::launch::async, [&pool, &poolMutex, stringView, &strings](){

std::scoped_lock lockForAddingStrings{ poolMutex };

for (std::size_t j = 0; j < 1000; ++j)

strings.push_back(pool.add(stringView));

}));

}

for (const auto& future : futures)

future.wait();