FreeTDS Development Group

[Frediano Ziglio <freddyz77 AT tin.it>]

Il mar, 2003-08-05 alle 06:31, Craig A. Berry ha scritto:
> At 11:57 PM -0400 8/4/03, James K. Lowden wrote:
> >  On some multithreaded platforms, errno is
> >actually a macro to a function call (which prevents assignment, but allows
> >typical use). 
> 
> C99 requires errno to be a "modifiable lvalue," but it also says in a
> footnote, "The macro errno need not be the identifier of an object.
> It might expand to a modifiable lvalue resulting from a function call
> (for example, *errno())."
> 
> So I think everything about your statement is correct except
> "prevents assignment"; a decent implementation is going to call a
> function that implements an assignable errno on a per-thread basis.

IMHO if errno is not thread-safe iconv is not too...
I think our tds_iconv should return error instead of leave caller check
errno.

Another issue about iconv. I'm going to change iconv stuff using an
abstract interface... 

freddy77