From @Siddhant

<sisar> r​: $_**2;
<p6eval> rakudo 45679a​: OUTPUT«use of uninitialized variable $_ of
type Any in numeric context  in block <anon> at /tmp/uUxfmOEKJJ​:1␤␤»
<sisar> that gives a different error locally
<sisar> it says "use of uninitialized variable $_ of type Any in
numeric contextMethod 'message' not found for invocant of class 'Any'
"
<moritz> the second half looks like an error during error reporting :/
<moritz> ah, you run it in the REPL
<sisar> yup
...
<moritz> but it's a bug that needs fixing
<moritz> r​: say ($_ ** 2).WHAT
<p6eval> rakudo 45679a​: OUTPUT«use of uninitialized variable $_ of
type Any in numeric context  in block <anon> at
/tmp/eWivcSD3YY​:1␤␤Int()␤»
<sisar> so should I report a rakudobug, or are you fixing it right now ?
<moritz> please report

From @FROGGS

thats the expected behaviour, right?

rakudo-2012-11$ install/bin/perl6

$_**2;
use of uninitialized variable $_ of type Any in numeric context
0

The RT System itself - Status changed from 'new' to 'open'

From @AlexDaniel

Currently it says this​:
Use of uninitialized value of type Any in numeric context
  in block <unit> at <unknown file> line 1

As well as complains about sink context in non-repl​:
Useless use of "**" in expression "$_**2" in sink context (line 1)

I see no problem with it. Except that it no longer says which variable caused the trouble. I guess it is less than awesome, but this part changed before 2014.01. I can't bisect there and it is irrelevant to this ticket.

I'll mark this as ｢testneeded｣ in case someone can come up with a test for this, but otherwise it is a resolved ticket.
On 2012-11-21 09​:53​:41, FROGGS.de wrote​:

thats the expected behaviour, right?

rakudo-2012-11$ install/bin/perl6

$_**2;
use of uninitialized variable $_ of type Any in numeric context
0

From @AlexDaniel

🍕 Test in rakudo/rakudo@4385e3f

On 2017-08-28 13​:58​:57, alex.jakimenko@​gmail.com wrote​:

Currently it says this​:
Use of uninitialized value of type Any in numeric context
in block <unit> at <unknown file> line 1

As well as complains about sink context in non-repl​:
Useless use of "**" in expression "$_**2" in sink context (line 1)

I see no problem with it. Except that it no longer says which variable
caused
the trouble. I guess it is less than awesome, but this part changed
before
2014.01. I can't bisect there and it is irrelevant to this ticket.

I'll mark this as ｢testneeded｣ in case someone can come up with a test
for
this, but otherwise it is a resolved ticket.
On 2012-11-21 09​:53​:41, FROGGS.de wrote​:

thats the expected behaviour, right?

rakudo-2012-11$ install/bin/perl6

$_**2;
use of uninitialized variable $_ of type Any in numeric context
0

@AlexDaniel - Status changed from 'open' to 'resolved'