# New Ticket Created by Aleks-Daniel Jakimenko-Aleksejev # Please include the string: [perl #130441] # in the subject line of all future correspondence about this issue. # <URL: https://rt.perl.org/Ticket/Display.html?id=130441 >
Code: say (--**)(1,2,3,4,5) Result (2015.12,2016.06): (0 1 2 3 4) Result (2016.11,HEAD): Cannot resolve caller prefix:<-->(Int); the following candidates match the type but require mutable arguments: (Mu:D $a is rw) (Int:D $a is rw) The following do not match for other reasons: (Bool $a is rw) (Mu:U $a is rw) (Num:D $a is rw) (Num:U $a is rw) (int $a is rw) (num $a is rw --> num) in block <unit> at /tmp/DOB7M3C38w line 1 While it is uncommon, I think the previous result is something one can sanely expect. Bisectable points to https://github.com/rakudo/rakudo/commit/de5d9e70cbfe678d2371d284e9384f53aba1eb94