[Oberon] Oberon] initializing variable - was: Maintained open source Oberon/Oberon-2 compiler?

Douglas G. Danforth danforth at greenwoodfarm.com
Wed May 14 22:39:01 CEST 2014

On 5/14/2014 12:46 AM, Treutwein Bernhard wrote:
>> If not, are declared variables initialized to a default value?
> as far as I know, this is deliberately unspecified.
 From the component pascal documentation

"Local variables whose types are pointer types or procedure types are 
initialized to NIL before the body of the procedure is executed"

"A module is a collection of declarations of constants, types, 
variables, and procedures, together with a sequence of statements *for 
the purpose of* assigning initial values to the variables."

"Variables declared in a module are cleared prior to the execution of 
the module body. This implies that all pointer or procedure typed 
variables are initialized to NIL"

That's it.
One nice thing about the MAINSAIL language was the concept that each 
data type had a Zero and that all initial values of the data were Zero.

-Doug Danforth
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