[Qt-interest] checking the return value of connect

[Mandeep Sandhu]

> So my question is – should real applications check the return value of
> connect statements. I can see a benefit during development but in the final
> application what can be done if the connect fail?

I think it's always a good practice to check the return value of
connect (unless you're absolutely sure it cannot fail). I've learned
this the hard way as i could have saved a lot of debugging cycles!

As for what should one do if connect fails...well that would depend a
lot on your application logic. Can you still proceed ahead and do
something meaningful if the connect call failed? We mostly do asserts
when such a thing happens...but then again thats during our dev cycles

Just my 2 cents.

-mandeep

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