In the series “avoid Variants when coding in Delphi”: the comparison operator
For Variant types, the = comparison operator in Delphi maps to the VarCompareValue in the Variants unit. That function fails to handle various comparisons and for some it knows it can handle raises a VarInvalidOp*through various code paths (like CheckType) to VarInvalidOp*because the implementation limits itself to varEmpty..varUInt64, which I think means that these are […]
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