to be an unsigned integer, there's not point in comparing
it to 0.
p4raw-id: //depot/perl@30519
#define HeHASH(he) HEK_HASH(HeKEY_hek(he))
#define HePV(he,lp) ((HeKLEN(he) == HEf_SVKEY) ? \
SvPV(HeKEY_sv(he),lp) : \
- (((lp = HeKLEN(he)) >= 0) ? \
- HeKEY(he) : NULL))
+ ((lp = HeKLEN(he)) >= 0)) \
#define HeSVKEY(he) ((HeKEY(he) && \
HeKLEN(he) == HEf_SVKEY) ? \