Joseph Adams <[email protected]> writes:
> On Fri, Aug 13, 2010 at 10:46 AM, Robert Haas <[email protected]> wrote:
>> + if (sub_end + len > e)
>> + {
>> + Assert(false); /* Clipped multibyte
>> character */
>> + break;
>> + }
> If I simply say Assert(sub_end + len <= e), the function will yield a
> range hanging off the edge of the input string (out of bounds). The
> five lines include a safeguard against that when assertion checking is
> off.
If you think it is actually likely to happen in practice, then an Assert
is 100% inappropriate. Throw an actual error instead. Code that has
provisions for continuing after an Assert failure is wrong by definition.
regards, tom lane
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