+ [ \&retinif1, { 2 => 1 } ],
+ [ \&retinif2, { 2 => 0.5, 3 => 0.25, 1 => 0.25 } ],
+
+ [ sub { $x || (3, 4) }, { 1 => 0.5, 2 => 0.5 } ],
+ [ sub { $x or (3, 4) }, { 1 => 0.5, 2 => 0.5 } ],
+ [ sub { $x && (3, 4) }, { 1 => 0.5, 2 => 0.5 } ],
+ [ sub { $x and (3, 4) }, { 1 => 0.5, 2 => 0.5 } ],
+ (([ eval 'sub { $x // (3, 4) }', { 1 => 0.5, 2 => 0.5 } ]) x ($^V ge v5.10.0)),