[Rd] formatC with illegal input crashes Rgui (PR#7686)

[P Ehlers]

Thanks. And good advice.
Peter

Prof Brian Ripley wrote:

> We'll fix this, but you might like to note that sprintf is more
> bulletproof and as from 2.1.0-to-be, a lot more tolerant, e.g.
> 
> sprintf("%s", 1)
> 
> works there and in 2.0.1 gives a useful error message.
> 
> On Fri, 11 Feb 2005 ehlers at math.ucalgary.ca wrote:
> 
>> Full_Name: Peter Ehlers
>> Version: rw2001pat (2005-02-03)
>> OS: Win XP
>> Submission from: (NULL) (136.159.61.115)
>>
>>
>> formatC(1, flag="s") crashes Rgui.
>> Similarly for flag=[SnZ].
>> Stupid input, of course, but I'm error-prone.
> 
>