On Sun, 17 Sep 2017 15:17:47 -0700, alex.jakime...@gmail.com wrote:
> Plain-wrongs and WHATs print different results today. Bisectable
> points at
> https://github.com/rakudo/rakudo/commit/242baf256a210f1cb643cb6324916dbc76184c9f
> 
> I think we now only need tests for this ticket.
> 
> On 2015-06-23 09:05:43, hmbrand wrote:
> > $ perl6 -e'my int $i = int.Range.min; say $i; say $i +> 16'
> > -9223372036854775808
> > -140737488355328
> > $ perl6 -e'my int $i = int.Range.min; say $i; say $i +> 32'
> > -9223372036854775808
> > -2147483648
> > $ perl6 -e'my int $i = int.Range.min; say $i; say $i +> 63'
> > -9223372036854775808
> > -1
> > $ perl6 -e'my int $i = int.Range.min; say $i; say $i +> 64'
> > -9223372036854775808
> > -9223372036854775808 <=====
> > plain wrong
> > $ perl6 -e'my int $i = int.Range.min; say $i; say $i +> -32'
> > -9223372036854775808
> > -39614081257132168796771975168
> > $ perl6 -e'my int $i = int.Range.min; say $i; say $i +> -64'
> > -9223372036854775808
> > -170141183460469231731687303715884105728
> >
> > $ perl6 -e'my int $i = int.Range.max; say $i; say $i +> 16'
> > 9223372036854775807
> > 140737488355327
> > $ perl6 -e'my int $i = int.Range.max; say $i; say $i +> 32'
> > 9223372036854775807
> > 2147483647
> > $ perl6 -e'my int $i = int.Range.max; say $i; say $i +> 63'
> > 9223372036854775807
> > 0
> > $ perl6 -e'my int $i = int.Range.max; say $i; say $i +> 64'
> > 9223372036854775807
> > 9223372036854775807 <=
> > PLAIN WRONG
> > $ perl6 -e'my int $i = int.Range.max; say $i; say $i +> -2'
> > 9223372036854775807
> > 36893488147419103228
> > $ perl6 -e'my int $i = int.Range.max; say $i; say $i +> -32'
> > 9223372036854775807
> > 39614081257132168792477007872
> > $ perl6 -e'my int $i = int.Range.max; say $i; say $i +< 2'
> > 9223372036854775807
> > -4 <=
> > WHAT?
> > $ perl6 -e'my int $i = int.Range.max; say $i; say $i +< -2'
> > 9223372036854775807
> > 2305843009213693951


For some of these that OP pointed out as questionable I get the
same results as in C. For others, the bug still exists, where it
just returns an Int instead of overflowing: 
https://irclog.perlgeek.de/perl6/2017-10-08#i_15272553

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