Hi David,
I'm not quite sure why I would want to read/write a sequential file over 2Gb
but, given that this originated as a D3 comment and has found its way on to
the U2 site, let me just add that QM can handle sequential files over 2Gb.
The argument used by UV is that because integer values are stored as 32 bit
numbers internally, file addresses over 2Gb cause a problem. A 64 bit
version of UV still stores integer values as 32 bits because to do otherwise
would potentially impact some applications (think about bitwise operations,
for example).
Also remember that at the operating system level, 64 bit file addressing
does not require a 64 bit architecture, just use of long long int variables
or, in some cases, a pair of 32 bit variables.
Martin Phillips
Ladybridge Systems Ltd
17b Coldstream Lane, Hardingstone, Northampton, NN4 6DB
+44-(0)1604-709200
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