[Libreoffice] How to write debug output to console or file?

[Mattias Johnsson]

Hello,

To help with debugging, it'd be very useful for me to be able to write
out variable values from within the code. Writing to the console or a
file would be fine.

std::cout doesn't work with any of the internal (unicode) string types
like OUString. Is there a way to cast them to something that cout can
deal with, or is there some logger that can write these strings to a
file?