[pcre-dev] [Bug 2285] Document tolerance for null pointers i…

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Temat: [pcre-dev] [Bug 2285] Document tolerance for null pointers in specific function parameters
https://bugs.exim.org/show_bug.cgi?id=2285

--- Comment #5 from Markus Elfring <elfring@???> ---
(In reply to Philip Hazel from comment #4)
>> * Since which version of the application programming interface was this
>> detail valid?
>
> I cannot remember, but probably since the very beginning.


This information is interesting. Does it eventually qualify for backporting
in API descriptions?


> The C standard "free()" function has this behaviour, and I was probably copying it.


This aspect can be nice, can't it?

How much do you try to avoid duplicate (or redunant) checks in related
software?


>> * Is there a need to mark such resource release functions in a special way
>> so they could be grouped?
>
> Sorry, I don't really understand what are suggesting here.


The tolerance for null pointers in specific parameters could be expressed for
each function.
I would find it helpful to list these functions also in a corresponding
documentation section.

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