[lkml]   [2003]   [Jan]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: any chance of 2.6.0-test*?
On Sun, 12 Jan 2003, Rob Wilkens wrote:

> However, I have always been taught, and have always believed that
> "goto"s are inherently evil. They are the creators of spaghetti code

If the main flow of the code is through a bunch of hard to trace
gotos and you choose to blame the tool instead of the programmer,
I guess you could blame goto.

However, the goto can also be a great tool to make the code more
readable. The goto statement is, IMHO, one of the more elegant
ways to code exceptions into a C function; that is, dealing with
error situations that don't happen very often, in such a way that
the error handling code doesn't clutter up the main code path.

As an example, you could look at fs/super.c::do_kern_mount()

mnt = alloc_vfsmnt(name);
if (!mnt)
goto out;
sb = type->get_sb(type, flags, name, data);
if (IS_ERR(sb))
goto out_mnt;

Do you see how the absence of the error handling cleanup code
makes the normal code path easier to read ?


Bravely reimplemented by the knights who say "NIH".
Current spamtrap: <a href=mailto:""></a>
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:32    [W:0.143 / U:4.188 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site