Re^8: How can I set a bit to 0 ?

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

Comment on Re^8: How can I set a bit to 0 ?

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Re^9: How can I set a bit to 0 ? by LanX (Saint) on May 27, 2022 at 15:10 UTC
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?	[reply]

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Re^9: How can I set a bit to 0 ?
by LanX (Saint) on May 27, 2022 at 15:10 UTC

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?

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