Re: Good bits from Marcin's patch3

[BORBELY Zoltan]

Hello,

On Wed, Apr 03, 2002 at 02:02:55PM +0100, Ian Campbell wrote:
> > What kind of *nix are you using? Maybe we should check for _broken_ snprintf
> > implementation too...
> 
> Just to stick my oar in, but perhaps this would be useful...
> 
> http://www.gnu.org/software/ac-archive/C_Support/ac_func_snprintf.html

It's not enough. It just checks wheter snprintf(NULL, 0, ...) can be
accepted. C99 implementations will return the required buffer size - 1
(not counting the terminating \0 character).

We should implement another test, similar to the following (just an idea,
I'll finish it this night):

    char buf[5] = {0, 0, 0, 0, 0};
    snprintf(buf, 4, "ABCD");
    exit( strlen(buf) != 3 );

If the implementation is broken strlen(buf) will be 4, C99 compliant should
produce 3. :-)

Bye,
Bozo