you seem to miss that he's using constants, like so often in bit operations.

  DB<44> use constant {upload =>0b1, getTicket =>0b10, downLoading=>0b
+100};    

  DB<45> use warnings; use strict; say my $stats = upload | getTicket 
+| downLoading;
7
  DB<46>
[download]

> The interesting thing with this thread is that I can't see how any of the replies (including GF's diversion) relate to the original post.

Now I'd be interested to know how I failed to answer exactly the question given in a concise way, especially given the level of the OP.

Plus explanation most others were lacking including the correct terminology and multiple further read-more links.

you seem to miss that he's using constants

You seem to assume that he's using constants ;-)

Unfortunately, he hasn't provided the definitions of those labels, let alone an SSCCE, so it's all guesswork.

---

🦛

> You seem to assume that he's using constants

Question: is there any other strict explanation for barewords as operands?

I've seen this pattern so many times with modules exporting flags and IIRC even perldocs°, that this discussion is surprising me.

Cheers Rolf
_{(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery}

update

°) see last paragraph in chmod

You can also import the symbolic S_I* constants from the Fcntl module:

use Fcntl qw( :mode );
chmod S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH, @executables;
# Identical to the chmod 0755 of the example above.
[download]

Now I'd be interested to know how I failed to answer exactly the question given in a concise way, especially given the level of the OP.

I didn't say that you (or anyone else) had failed to answer the question.
All I said was that I couldn't see how the answers given related to the question that was asked ... for the simple reason that I couldn't work out what the question actually was (owing to lack of details given).
Sure, I know the OP wants to set bits in something - in a PV ? in an IV ? in an NV ? in some object (maybe Math::GMP or Bit::Vector) ?

Everyone else seems to reckon they know, and if they were able to deduce that from the original post, then well done !!
But I don't have that level of psychic acuity.

Cheers,
Rob

bit operations happen normally on unsigned integers, I'd say in >90% of the cases (at least)

And I've already shown two instances of perldocs demonstrating exactly that pattern.

> in a PV ? in an IV ? in an NV ?

I reckon IV is an integer value ... please explain the rest° in this context, my perlguts are aching ;-)

And the OP will most probably only know "scalar".

Cheers Rolf
_{(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery}

°) OK looking up in "Advanced Perl Programming" (sic)

> A scalar value (SV) contains the value of the scalar, a reference count, and a bitmask to describe the state of the scalar. The scalar may be an integer value ("IV"), a double ("NV"), a string ("PV" for pointer value),

I can't see how this is relevant here.

update

I mean: If someone asks how best to hold a hammer, do you complain he didn't tell you which alloy the nails are made of and where the original ore was mined? Seriously?