new SV, you should consider using C<newSVhek(HeKEY_hek(he))> as it is more
efficient.
-=for apidoc Am|char*|HeUTF8|HE* he
+=for apidoc Am|U32|HeUTF8|HE* he
Returns whether the C<char *> value returned by C<HePV> is encoded in UTF-8,
doing any necessary dereferencing of possibly C<SV*> keys. The value returned
will be 0 or non-0, not necessarily 1 (or even a value with any low bits set),
*/
#define PERL_HASH_DEFAULT_HvMAX 7
-/* HvMAX(hv)+1 is >= to this we preallocate the HvAUX() struct during hsplit()
+
+/* During hsplit(), if HvMAX(hv)+1 (the new bucket count) is >= this value,
+ * we preallocate the HvAUX() struct.
* The assumption being that we are using so much space anyway we might
* as well allocate the extra bytes and speed up later keys()
* or each() operations. We don't do this to small hashes as we assume