[Python-Dev] About "Coverity Study Ranks LAMP Code Quality"

Fredrik Lundh fredrik at pythonware.com
Wed Mar 15 12:13:03 CET 2006

>> >     return=NULL; output=junk => out of memory
>> >     return=junk; output=-1 => cannot do this
>> >     return=pointer; output=value => did this, returned value bytes
>> > I agree that the design is a bit questionable;
>> It sure is. If you get both NULL and -1 returned, how are
>> you supposed to know which one is the junk?
> I was about to say "by doing the tests in the prescribed order",
> but you're right that it's not obvious that the function checks
> that it returns the right kind of junk...  (it's possible that the
> junk in the second line is actually "pointer to some other ob-
> ject").

footnote: it is; the table should read

    return=NULL; output=junk => out of memory
    return=old pointer; output=-1 => no need do this; returning old pointer
    return=new pointer; output=value => did this, returned pointer to newly
        allocated area containing 'value' bytes


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