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- Subject: Re: Correct way to push an empty string?
- From: Tim Hill <drtimhill@...>
- Date: Sun, 23 Aug 2015 11:47:46 -0700
> On Aug 23, 2015, at 8:05 AM, Roberto Ierusalimschy <roberto@inf.puc-rio.br> wrote:
>
>> Yes I followed the code through as well, but I’m not happy with
>> basing usage on what the code happens to do when the spec is silent
>> about it.
>
> Maybe it is just me, but it seems that it goes without saying (both for
> memcpy and for luaL_pushlstring and anything similar) that if you use
> zero bytes in address 'a', 'a' should be irrelevant.
>
> -- Roberto
>
Yes I agree, but having been bitten a few times in the past (a “memcpy” that crashed with NULL pointers even if size was zero) I was seeking confirmation. Thanks.
—Tim