On Fri, Jul 26, 2013 at 06:36:21AM +0200, Kagamin wrote:
> On Tuesday, 23 July 2013 at 18:14:10 UTC, Ali Çehreli wrote:
> >First of all, C does not have exceptions so every single thing
> >must be done as two lines:
> >
> > err = do_something();
> > goto_finally_if_error(err);
>
> Huh, never seen such pattern in C. I just return error code.
I think what he meant is code like this:
#define OK 0
#define ERR -1
void myfunc(int x, int y, int z) {
void *buf = malloc(100);
int err;
if ((err = fun1(x,y,z)) != OK)
goto EXIT;
if ((err = fun2(x,y,z)) != OK)
goto EXIT;
if ((err = fun3(x,y,z)) != OK)
goto EXIT;
if ((err = fun4(x,y,z)) != OK)
goto EXIT;
/* Finally finished! */
err = OK;
EXIT:
/* Do cleanup */
free(buf);
return err;
}
I have to write code like this every day at work, and it's a royal pain
in the neck.
T
--
The best way to destroy a cause is to defend it poorly.
