Re: sprintf usage

[E. Rosten]

> Hi,
>
> There seems to be a problem with gnokii sources and some compilers. I
> got the report from FC4 and gcc version 4.0.2 20051125. The problem is
> with interpretation of:
> sprintf(buffer, "%s%d", buffer, digit);

> It used to work so far but under FC4 it behaves always in the was as
> buffer was empty (regardles of buffer contents) and the result string
> is always the digit.

What is the expected benaviour? Is it essentially appending %d digit to 
the end of the buffer.

> Is it a bug in gcc or is it misuse of sprintf?

These things tend to be quite ill specified in the standard, so I would 
expect that it is a misuse. The bast place to ask is probably 
comp.lang.c.moderated

Also, wouldn't it be better to use snprintf as a general rule?

-Ed