From @b2gills

  $ perl6-m -e 'say 10 ** 10 ** 10'
  0

While it does come to the conclusion very quickly, the result doesn't make any sense.

The JVM backend at least returns a sensible value, even if it does take
quite a bit longer to figure out.

  $ perl6-j -e 'say 10 ** 10 ** 10'
  Inf

From @zoffixznet

On Wed, 01 Jul 2015 13​:22​:39 -0700, brad wrote​:

$ perl6-m -e 'say 10 ** 10 ** 10'
0

While it does come to the conclusion very quickly, the result doesn't
make any sense.

The JVM backend at least returns a sensible value, even if it does
take
quite a bit longer to figure out.

$ perl6-j -e 'say 10 ** 10 ** 10'
Inf

This now throws on MoarVM, but on JVM still gives Inf.... Does the result need to be the same?

<ZoffixW> r​: say 10 ** 10000000000
<camelia> rakudo-moar b5aa3c​: OUTPUT«Numeric overflow␤ in block <unit> at <tmp> line 1␤␤Actually thrown at​:␤ in block <unit> at <tmp> line 1␤␤»
<camelia> ..rakudo-jvm 76b061​: OUTPUT«Inf␤»

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

From @zoffixznet

On Fri, 18 Nov 2016 10​:20​:43 -0800, cpan@​zoffix.com wrote​:

On Wed, 01 Jul 2015 13​:22​:39 -0700, brad wrote​:

$ perl6-m -e 'say 10 ** 10 ** 10'
0

While it does come to the conclusion very quickly, the result doesn't
make any sense.

The JVM backend at least returns a sensible value, even if it does
take
quite a bit longer to figure out.

$ perl6-j -e 'say 10 ** 10 ** 10'
Inf

This now throws on MoarVM, but on JVM still gives Inf.... Does the
result need to be the same?

<ZoffixW> r​: say 10 ** 10000000000
<camelia> rakudo-moar b5aa3c​: OUTPUT«Numeric overflow␤ in block
<unit> at <tmp> line 1␤␤Actually thrown at​:␤ in block <unit> at <tmp>
line 1␤␤»
<camelia> ..rakudo-jvm 76b061​: OUTPUT«Inf␤»

Actually, I spot more inconsistencies between the way our math ops behave. For example `*` returns Inf instead of throwing on overflow. So does the `**` on other numerics, BUT it throws on underflow instead, but the Int `**` just gives the division-by-zero error​:

IRC​: https://irclog.perlgeek.de/perl6-dev/2016-11-18#i_13591836

18​:17 viki r​: say 10 ** 10 ** 10
18​:17 camelia rakudo-jvm 76b061​: OUTPUT«Inf␤»
18​:17 ..rakudo-moar b5aa3c​: OUTPUT«Numeric overflow␤ in block <unit> at <tmp> line 1␤␤Actually thrown at​:␤ in block <unit> at <tmp> line 1␤␤»
18​:22 viki m​: say 1e200 * 10e200
18​:22 camelia rakudo-moar b5aa3c​: OUTPUT«Inf␤»
18​:23 viki Seems like it'd make sense to return Inf instead of throwing for ** too?
18​:23 And that would align the results between JVM and MoarVM too
18​:25 m​: say 10e0 ** 10000000000e0
18​:25 camelia rakudo-moar b5aa3c​: OUTPUT«Inf␤»
18​:25 viki :)
18​:26 m​: say <10/1> ** <10000000000/1>
18​:26 camelia rakudo-moar b5aa3c​: OUTPUT«Inf␤»
18​:28 viki oh heh and in the Num case we throw for Underflow instead
18​:28 m​: say 10e0 ** -10000000000e0
18​:28 camelia rakudo-moar b5aa3c​: OUTPUT«Numeric underflow␤ in block <unit> at <tmp> line 1␤␤Actually thrown at​:␤ in block <unit> at <tmp> line 1␤␤»
18​:28 viki m​: say 10 ** -10000000000
18​:28 camelia rakudo-moar b5aa3c​: OUTPUT«Attempt to divide 1 by zero using div␤ in block <unit> at <tmp> line 1␤␤Actually thrown at​:␤ in block <unit> at <tmp> line 1␤␤»