[tz] [PROPOSED 1/7] Avoid undefined behavior if no Link lines

[Tom Lane]

Paul Eggert <eggert at cs.ucla.edu> writes:
> The core dump occurred because GCC translates this:

>    qsort(links, nlinks, sizeof *links, qsort_linkcmp);

> as if it were this:

>    if (nlinks == 0)
>      __builtin_trap();
>    qsort(links, nlinks, sizeof *links, qsort_linkcmp);

Right, so they are actually going out of their way to make it
a gotcha.  What point does that serve?

			regards, tom lane