Testing $! when use strict is in effect

Bloehdian has asked for the wisdom of the Perl Monks concerning the following question:

Hi monks,

probably a quite simple question for most of You, but I've just got stuck on it:

In one of my progs I have the following

if ( ! defined $test && $! == EWOULDBLOCK ) {

which, since use strict is effect gives the error message

"Bareword "EWOULDBLOCK" not allowed while "strict subs" in use"

How can I test $! anyways?

Cheers

Bloehdian

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Re: Testing $! when use strict is in effect by Corion (Patriarch) on Oct 20, 2016 at 18:45 UTC
The error is not about `$!` but about `EWOULDBLOCK`. You will need to import it, most likely from Errno.	[reply] [d/l] [select]
Re^2: Testing $! when use strict is in effect by Bloehdian (Beadle) on Oct 20, 2016 at 19:00 UTC
Thx, works ;-)	[reply]
Re: Testing $! when use strict is in effect by Dallaylaen (Chaplain) on Oct 23, 2016 at 22:16 UTC
You can check condition "error EFOO is the case" via the %! magic hash: `if ($!{EWOULDBLOCK} ) { # would block };` [download] Search for %ERRNO in perldoc perlvar.	[reply] [d/l]