setjump and longjump

[pal]

hi all,
Can anybody explain about setjump and longjump functions if u have
time to spend on this.

Thanks,
pal

[Ravishankar S]

"pal" <ja********@gmail.comwrote in message
news:09**********************************@a35g2000 prf.googlegroups.com...

hi all,
Can anybody explain about setjump and longjump functions if u have
time to spend on this.

it is "setjmp" and "longjmp". they provide (among others) a method to do a
non-local goto (goto across functions). any good
C textbook can provide with an example.

[steve.pagliarulo]

On Dec 26, 10:51*pm, pal <[e-mail]:

hi all,

Can anybody explain about setjump and longjump functions if u have
time to spend on this.

Thanks,
pal

setjmp and longjmp are very old and are a primitive a form of
exception handling (conceptually). They definitely should not be used
in new code.

[J. J. Farrell]

st**************@gmail.com wrote:

On Dec 26, 10:51 pm, pal <[e-mail]:

>>
Can anybody explain about setjump and longjump functions if u have
time to spend on this.

setjmp and longjmp are very old and are a primitive a form of
exception handling (conceptually). They definitely should not be used
in new code.

Why not?

[Eric Sosman]

st**************@gmail.com wrote:

On Dec 26, 10:51 pm, pal <[e-mail]:

>hi all,

Can anybody explain about setjump and longjump functions if u have
time to spend on this.

setjmp and longjmp are very old and are a primitive a form of
exception handling (conceptually). They definitely should not be used
in new code.

They should definitely not be used in most code, but when
they're needed in code new or old, they're the only mechanism
available for the task.

Are you, perhaps, thinking of That Other Language?

--
Eric Sosman
es*****@ieee-dot-org.invalid

[Richard Heathfield]

J. J. Farrell said:

st**************@gmail.com wrote:

>On Dec 26, 10:51 pm, pal <[e-mail]:

>>>
Can anybody explain about setjump and longjump functions if u have
time to spend on this.

setjmp and longjmp are very old and are a primitive a form of
exception handling (conceptually). They definitely should not be used
in new code.

Why not?

For the same reason that they shouldn't be used in old code. They suck. :-)
--
Richard Heathfield <http://www.cpax.org.uk>
Email: -http://www. +rjh@
Google users: <http://www.cpax.org.uk/prg/writings/googly.php>
"Usenet is a strange place" - dmr 29 July 1999

[steve.pagliarulo]

On Dec 28, 2:22*pm, "J. J. Farrell" <[e-mail]:

[e-mail] wrote:

On Dec 26, 10:51 pm, pal <[e-mail]:

Can anybody explain about setjump and longjump functions if u have
time to spend on this.

setjmp and longjmp are very old and are a primitive a form of
exception handling (conceptually). They definitely should not be used
in new code.

Why not?

I should qualify that answer with "unless you have no other choice."
They are simply one of the the biggest hacks ever made. Understanding
the problem might allow suggestions for better solutions.