[fpc-pascal] How to solve "variable does not seem to be initialized" compiler hint.

Rainer Stratmann RainerStratmann at t-online.de
Thu Nov 19 22:50:31 CET 2009

Am Thursday 19 November 2009 22:40:53 schrieb Vinzent Höfler:
> Rainer Stratmann <RainerStratmann at t-online.de>:
> > For me a variable is initialised when it passes a procedure/function
> > which has a  var declaration in the parameters.
> -- 8< --
> procedure Add_2 (var I : Integer);
> begin
>    I := I + 2;
> end;
> -- 8< --
> If the variable for the parameter I wasn't correctly initialized before, it
> would still contain garbage upon return.

Yes, but for that is the compiler-switch $PASS_VAR_NO_HINT ON.
Then no hint is put out by the compiler.
If this switch is on the programmer is resposible for initialising variables 
which pass a function.

If someone doesn't find it useful then he/she is not forced to use the switch.

I would use this switch if it exists. My code is full of this passing 
variables through procedures/functions. And also I wonder of this many hints.


> Vinzent.

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