Re: GPC compiler crash

Thomas Schneider wrote:

> I discovered a program that crashes the GPC compiler, attached.

It doesn't crash the compiler on Mac OS X, but it does cause a runtime error, because you are 
overflowing the stack.

> procedure writeprism(var dianalysis: text; dataprism: trisquare);

Ough. You are passing a very large datastructure as value parameter, which implies that a copy of 
it is put on the stack. This costs a huge amount of stack and a lot of time. Instead, try

procedure writeprism(var dianalysis: text; var dataprism: trisquare);

> procedure themain(var da: text);
> var
>   dataprism: trisquare;   (* the data structure for diana *)

It is a local variable of main, therefore it lives on the stack. Instead, try

var
   dataprism: trisquare;   (* the data structure for diana *)

procedure themain(var da: text);

(a rare case where the use global variables is advised).

Regards,

Adriaan van Os


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