C++ printing in a loop

Hello!
Does anyone know how to tell the program to print stuff each single step in my loop?
Whenever i execute the program it just prints the very last step:

  for( uint i = 0; i < iter; i++) {
    [...]
    std::cout << "stuff";
  }

Thanks!

Maybe i wasn't clear: I want to let the program print stuff every step but it only prints *all* steps at the end.

>>2
Put a << std::endl after "stuff".

cout, cin, fstream, ostream
harmful, use printf

>>3 is probably right. This sounds like an unflushed¹ buffer issue.

>>4
printf is ridiculously slow. I wish compilers would optimise it instead of having the run-time library decode the format string.

<sub>__________
1. TODO: Insert toilet joke.</sub>

>>5
fputs

>>5
The format string may be dependent on program state.

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