How to write 'n' copies of a character to ostream like in python

The obvious way would be with fill_n:

std::fill_n(std::ostream_iterator<char>(std::cout), 5, 'a');

Another possibility would be be to just construct a string:

std::cout << std::string(5, 'a');

Use some tricky way: os << setw(n) << setfill(c) << ""; Where n is number of char c to write