[PATCH] Introduce cxstring::createEmpty()

[Dmitri Gribenko]

Hello Argyrios & cfe-commits,

Here's the first step of the refactoring.  Important points are:

(1) the name of the function -- we can repaint it whatever color you like;

(2) a slight behavior change.  We used to differentiate NULL and empty
"" strings.  This does not make a lot of sense (and the difference was
never documented), so I chose to normalize to empty "" strings, since
this eliminates a NULL check in the user code.  (But existing code is
already polluted with those checks...)

Dmitri

-- 
main(i,j){for(i=2;;i++){for(j=2;j<i;j++){if(!(i%j)){j=0;break;}}if
(j){printf("%d\n",i);}}} /*Dmitri Gribenko <gribozavr at gmail.com>*/
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