ZEND_BITSET_BIT_NUM   30 Zend/zend_bitset.h # define ZEND_BITSET_BIT_NUM(n)		((zend_ulong)(n) & Z_UL(0x1f))
ZEND_BITSET_BIT_NUM   33 Zend/zend_bitset.h # define ZEND_BITSET_BIT_NUM(n)		((zend_ulong)(n) & Z_UL(0x3f))
ZEND_BITSET_BIT_NUM   36 Zend/zend_bitset.h # define ZEND_BITSET_BIT_NUM(n)		((n) % (sizeof(zend_long) * 8))