TRACE_MAXIMUM
if (len == 0 && USE_TRACEF(TRACE_MAXIMUM)) {
if ((_nc_tracing & TRACE_MAXIMUM) == 0) { \
_nc_tracing &= TRACE_MAXIMUM, \
SPECIAL_MASK(TRACE_MAXIMUM);
if (tracelevel > TRACE_MAXIMUM) {
_nc_tracing |= TRACE_MAXIMUM; \