RFR(M): 8073315: Enable gcc -Wtype-limits and fix upcoming issues.

[Kim Barrett]

On Feb 27, 2015, at 6:59 AM, Lindenmaier, Goetz <goetz.lindenmaier at sap.com> wrote:
> 
> I started to fix the issues you noted, but I'm not sure about this one: 
>> - Result of final jio_snprintf is not checked.

That was one of the issues I recommended not be fixed as part of this changeset, in part to avoid questions like this.

> I think it's on purpose that the result is not checked.  In case of an error
> of the VM, one wants to see as much information as possible. The result 
> of get_core_path is only used for printing, and printing a truncated path 
> still might help to find the core.
> That's also the reason to return strlen and not the result of jio_snprintf.
> 
> Note that jio_snprintf always terminates strings and returns -1 on error.

jio_snprintf also returns -1 for things other than for truncation.  So I disagree with that rationale for not checking the final jio_snprintf result.  But as I said, I would prefer to not delay / derail this change set with this largely unrelated discussion.