Print buckets and their linked list of keys in C++ unordered container

print_buckets.cpp

#include <unordered_set>
#include <iostream>

using IntHashTable = std::unordered_set<int>;

void PrintBuckets(const IntHashTable& htab)
{
    for (auto bi = 0; bi < htab.bucket_count(); ++bi)
    {
        std::cout << "B[" << bi << "]:";

        for (auto it = htab.begin(bi); it != htab.end(bi); ++it)
            std::cout << " -> " << *it;

        std::cout << "\n";
    }
}


int main()
{
    IntHashTable htab = {3, 6, -2, 9, 199, 42};

    PrintBuckets(htab);

    return 0;
}

// Output on my computer:
//
// $ ./a.out 
// B[0]: -> 42 -> -2
// B[1]:
// B[2]: -> 9
// B[3]: -> 199 -> 3
// B[4]:
// B[5]:
// B[6]: -> 6