Hello,
Does GetMem care about the memory contents of the pointer variable ?
If not the parameter should be out instead of var to prevent the following
hint message:
GetMem( node, sizeof(Tnode) );
Y:\Free Pascal\Units\Technical\TnodeList\version 0.08 port to free
pascal\unit_TnodeList_version_009.pas(1015,3) Hint: Variable "node" does not
seem to be initialized
GetMem could fail if out of memory, Delphi raises an OutOfMemory Exception.
What does Free Pascal do ?
Also I know when an exception is raised from inside a function the return
value is never assigned to the variable.
At least not the result variable/return value.
However I am not so sure what happens to var parameters and out parameters,
those can probably be changed, and later after they already changed an
exception could be raised.
So whatever bad happens GetMem could always make sure the parameter is
initialized to nil ?!
What your thoughts on this ?
Bye,
Skybuck.
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