96561eeae0
* harbour/include/Makefile
+ harbour/include/hbchksum.h
* harbour/source/rtl/Makefile
+ harbour/source/rtl/hbadler.c
+ harbour/source/rtl/hbcrc.c
+ harbour/source/rtl/hbmd5.c
+ added functions to calculate different checksums
HB_ADLER( <cValue> [, <nStart> ] ) -> <nCC>
HB_CRC32( <cValue> [, <nStart> ] ) -> <nCRC>
HB_CRC16( <cValue> [, <nStart> ] ) -> <nCRC>
HB_CRC ( <cValue> [, <nStart> ] [, <nPolynomial> ] ) -> <nCRC>
HB_CRCCT( <cValue> [, <nStart> ] [, <nPolynomial> ] ) -> <nCRC>
HB_MD5( <cString> ) -> <cMD5>
HB_MD5FILE( <cFileName> ) -> <cMD5>
HB_CRC() is general CRC function which can be used for any polynomial
given as second argument, f.e.: 0x104C11DB7 is CRC32 polynomial,
0x18005 -> CRC16, 0x11021 -> CRC16 X.26, 0x1393 -> CRC12, 0x101 -> LCR8
HB_CRCCT() makes exactly the same job but it uses broken algorithm.
Unfortunately it seems that this broken version is widely used by many
other projects, f.e. HB_CRCCT() gives exactly the same results as
COM_CRC() from CT3. Generated results are usually "good enough" but
if you do not need compatibility with some other tools which uses
broken CRC algorithm then I suggest to not use it.
HB_ADLER() is ADLER32 check sum - this function gives the same results
as HB_CHECKSUM in xHarbour.
HB_MD5*() functions are from Dmitry V. Korzhov code modified a
little bit by me for other then x86@32 machines files and buffers
longer then 2^32. I also fixed possible problems with wrong results
in some cases.
* harbour/source/compiler/hbmain.c
* increase number of optimization passes
* harbour/source/pp/ppcore.c
* cleaned C compiler warning