.. a final one: if you don't like all those *_debug functions around,
both in rehex.h and regex.tcc, you could move all of them to a new
header matching the new naming scheme, like regex_debug.h. For the time
being I would recommend putting it in bits/, installing it, including it
from <regex>, exactly like all the other regex bits.
A completely different option, which I also like a lot in fact, would be
putting the new *_testsuite functions inside the already existing
testsuite/util/testsuite/regex.h. There you would use namespace
__gnu_test, would not require strict uglification, etc.
Paolo.
