Re: RFR: JDK-8074579 Use more efficient and readable way of checking PKZIP signatures

[Martin Buchholz]

Err...

#define PKZIP_SIGNATURE_AT(p, b2, b3) \
  (((p)[0] == 'P') & ((p)[1] == 'K') & ((p)[2] == b2) & ((p)[3] == b3))