On Mon, 21 Feb 2022 13:34:29 +0100 gabor via fpc-pascal <fpc-pascal@lists.freepascal.org> wrote:
> W dniu 2022-02-21 o 13:18, Ryan Joseph via fpc-pascal pisze: > > Oh my, I was confusing my terms I think. I wanted to do bit masking > > (I think it's called). I was expecting there to be something like > > TestFlag in the RTL since I can never remember the syntax "Value = > > (Value or Index)" function TestFlag(Value: QWord; Index: Byte): > > Boolean; begin result := Value = (Value or Index); > > end; > > Should you use the "AND" operator instead of "OR" for bit testing? > > result := Value = (Value AND Index); No. result := (Byte(Value) AND Index)>0; result := Index = (Byte(Value) AND Index); result := Byte(Value) = (Byte(Value) OR Index); Mattias _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
