Re: Correct way to push an empty string?

[Tim Hill <drtimhill@...>]

> On Aug 24, 2015, at 6:25 AM, Roberto Ierusalimschy <roberto@inf.puc-rio.br> wrote:
> 
>>> 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.
> 
> Well, I stand corrected. According to ISO, 'memcpy' (and, therefore,
> luaL_pushlstring) cannot be called with NULL.
> 
> -- Roberto
> 

Is it worth updating the docs to make this clear? Especially as the other posts here (and some of the links) appear to indicate some confusion about this.

—Tim