Am 02.04.2023 um 16:29 schrieb Seymour J Metz:
Regardless of the implementation, call by reference is about more than 
efficiency; sometimes a subroutine is required to alter one of its parameters, 
and call by value doesn't allow that.

That's well known;
most C textbooks tell that call by value is impractical for large structures or arrays because of the copy involved; that's why for performance reasons often pointers are passed,
although no modification of the parameters passed is desired or required.
That's what I referred to.

Kind regards

Bernd

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