Maciej Sobczak wrote:

I have troubles deciphering what the inspect tool really does.

In particular, the test defined in link_check.cpp - does it check the URL links in *source* files?

I haven't verified this, but I think it does.

Where can be such links located? In source comments presumably?

Yes, this is important for files containing doxygen documentation. I suppose it's also possible that a program could output a URL when run - so it might be in a string. There's also quickbook and restructured text files to consider. But links that don't end up in html files should also be checked - people read the source. Daniel