Can you elaborate what you meant by the new "print overheads should probably be avoided" comment?
Because printf is slow and this is on the critical path of data generation. Printf has to interpret the format each time just to print three ints, specialized functions could be used which would allow to skip the repeated format parsing.
I left that out since it seems unrelated to switching to PQExpBuffer.
Yep. Thanks for the commit. Getting rid of most snprintf is a relief. -- Fabien.
