Experimental Physics and Industrial Control System
Hello all,
I am new to EPICS and EDM, so please bear with me.
We have compiled EDM using a 64-bit compiler, and we find some segfaults: apparently only when we close a window containing an xyGraph. We've tracked the cause down to xygraph.cc where there are various casts to longs (for example):
case ProcessVariable::specificType::integer:
if ( xyo->ySigned[i] ) {
dyValue = (double) ( (long *) xyo->yPvData[i] )[n];
}
else {
dyValue = (double) ( (long *) xyo->yPvData[i] )[n];
}
Since (apparently) EPICS integers are actually 32 bits, is this correct? In practice, if I change all the casts to ints, I get no more segfaults. I find that these casts were actually changed from ints in 1-12-41, with the comment 'fix for 64 bit systems, thanks to Sebastian Marsching'.
Can anyone shed any light on this?
Thanks,
Will Rogers
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