Sometimes we forgot whether a function argument is passed by reference or by value. What if the result is actually important? For instance, consider the following (WARNING: True story):
function Align(Addr: Pointer; Alignment: PtrUInt): Pointer; then we forgot that Addr is passed by value, so instead of stating APointer:=Align(APointer,TheAlignment); we only call Align(APointer,TheAlignment); which is harmful as we may need to have the pointer aligned. It's useful, believe me (Nimrod even doesn't allow it without a special statement). PS: I think a warning (or note or hint, whichever suits best) is enough. -- View this message in context: http://www.nabble.com/Compiler-option-to-check-return-value-ignorance-tp18958911p18958911.html Sent from the Free Pascal - General mailing list archive at Nabble.com. _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
