| Issue 23: | Issue with 64-bit Linux | |
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On my 64-bit Kubuntu Linux box I enyounter the following problem: Decimal-values with NULL-value produce an exception when reading. This happens because in src/getdata.cpp, function GetDataDecimal, the variable cbFetched is of type SQLLEN which is 64 bits long. The return value -1 for a NULL value is a 32 bit number, so it is not -1 in 64 bits and the function tries to convert the empty string '' to a decimal which raises an exception. Possible solution to the problem: cbFetched must be of a 32-bit type, regardless of the systems bit size. I am sorry, but I don't know, which type could be the right one for this. Regards, Axel |
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Mar 18, 2009
I'm at a loss here: cbFetched really needs to be a SQLLEN -- we're passing a pointer to a 8-bytes of memory (SQLLEN*) so it would be bad if the memory only contained 4-bytes. I assume you are using unixODBC? It allows you to set SIZEOF_LONG, so if the driver and the driver-manager were compiled with different values, you might see this behavior. (Incidentally, what kind of whacked out option is that, changing the size of long? ;) What version of unixODBC are you using? I'll look through their header files and see what we can do.
Status: Investigating
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Mar 21, 2009
I am using unixODBC 2.2.11-16build2 on Kubuntu 8.10. Regards, Axel |
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