Re^2: looking for a good idiom: return this if this is true

[Zaxo]

The || operator is the high priority logical or, so if thatroutine() evaluates false, die is evaluated before return is.

Update: Oops, I misunderstood your objection, which is correct:

$ perl -Mstrict -we'sub bar {"baz"} sub foo {eval{return bar() || die}
+; "quux"} print foo()'
quux$

If the eval return was effective in the foo() call, should have printed "baz".

[borisz]

Thats clear to me, but I do not understand the other part: The question is how to return a value, if it is true and continue otherwise.

sub that { 5 }
sub xx{ eval { return that() || die }; 1 }
print xx;
__OUTPUT__
1

But the op wants 5 and that the part outside the eval is not executed expect when that is false.