ClickHouse/dbms/src/Common/tests/small_table.cpp

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#include <iostream>
#include <iomanip>
#include <Interpreters/AggregationCommon.h>
#include <Common/HashTable/SmallTable.h>
int main(int argc, char ** argv)
{
{
using Cont = SmallSet<int, 16>;
Cont cont;
cont.insert(1);
cont.insert(2);
Cont::iterator it;
bool inserted;
cont.emplace(3, it, inserted);
std::cerr << inserted << ", " << *it << std::endl;
cont.emplace(3, it, inserted);
std::cerr << inserted << ", " << *it << std::endl;
for (auto x : cont)
std::cerr << x << std::endl;
std::string dump;
{
DB::WriteBufferFromString wb(dump);
cont.writeText(wb);
}
std::cerr << "dump: " << dump << std::endl;
}
{
using Cont = SmallMap<int, std::string, 16>;
Cont cont;
cont.insert(Cont::value_type(1, "Hello, world!"));
cont[1] = "Goodbye.";
for (auto x : cont)
std::cerr << x.first << " -> " << x.second << std::endl;
std::string dump;
{
DB::WriteBufferFromString wb(dump);
cont.writeText(wb);
}
std::cerr << "dump: " << dump << std::endl;
}
{
using Cont = SmallSet<DB::UInt128, 16>;
Cont cont;
std::string dump;
{
DB::WriteBufferFromString wb(dump);
cont.write(wb);
}
std::cerr << "dump: " << dump << std::endl;
}
return 0;
}