Re^4: Checksum Help

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Re^5: Checksum Help by graff (Chancellor) on Jul 08, 2009 at 02:25 UTC
It spits out two checksums, one is in paranthesis. What does each indicate? I was hoping you understood that already, since the output of two different values is based directly on the original code that you posted. As I mentioned earlier, I do not understand the need for the second value. The first value is simply the CRC32 checksum computed from a given data file. The second value is the "ones complement" of the first value (as you can see from the code, it is derived by subtracting the first value from 0xffffffff). If you don't see any need for that second value, just ignore it (or remove if from the printf statement).	[reply]

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Re^5: Checksum Help
by graff (Chancellor) on Jul 08, 2009 at 02:25 UTC

It spits out two checksums, one is in paranthesis. What does each indicate?

I was hoping you understood that already, since the output of two different values is based directly on the original code that you posted.

As I mentioned earlier, I do not understand the need for the second value. The first value is simply the CRC32 checksum computed from a given data file. The second value is the "ones complement" of the first value (as you can see from the code, it is derived by subtracting the first value from 0xffffffff).

If you don't see any need for that second value, just ignore it (or remove if from the printf statement).

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