Hi,
I read is S03,
The && and || operators are smarter about list context and return ()
on failure in list context rather than Bool::False. The operators
still short-circuit, but if either operator would return a false
value, it is converted to the null list in list context so that the
false results are self-deleting.
For "&&", wouldn't it be a better idea to return an empty list only if
the *first* operand is false? In other words, I suggest that "$a && $b"
behave in list context like this:
* If $a is false, return ()
* Otherwise, return $b
Here's a use case that would benefit from this behaviour:
Suppose you want to generate an argument list for an external command.
For some reason you have a boolean value $include_arg3 and you want to
include $arg3 only if $include_arg3 is true:
my @args = $arg1, $arg2, $include_arg3 && $arg3, $arg4;
Here you probably want to include $arg3 even if it is a false value like
"0", provided that $include_arg3 is true.
Regards,
Christoph
