What is a "signed int"?

[Harvey]

"There should not be any signed int. If you've found a signed int somewhere, please tell me (within the next 25 years please) and I'll change it to unsigned int." -- Satoshi

What is a signed int and why should they be unsigned, according to Satoshi?

[1714003388]

1714003388

[1714003388]

1714003388

[1714003388]

1714003388

[btc_artist]

A signed integer can be either negative or positive (- or +), such as 55 and -55.  An unsigned int can only be positive.  If you only need to deal with positive numbers, you should use unsigned ints because the maximum integer number the type can hold will be twice as much as a signed int.

[theymos]

It's the "within the next 25 years" part that makes the quote funny. Representing time with a signed int doesn't become a problem for a long time, so Satoshi was being sarcastic.

Am I the only one who finds this quote funny? Maybe it needs more context.

[dree12]

It's the "within the next 25 years" part that makes the quote funny. Representing time with a signed int doesn't become a problem for a long time, so Satoshi was being sarcastic.

Am I the only one who finds this quote funny? Maybe it needs more context.

I found it funny, but that's because I have background in Unix timekeeping and C jargon. I assume the average person doesn't have this knowledge, and therefore it would not make sense to them.

[dark_st3alth]

A signed integer can be either negative or positive (- or +), such as 55 and -55.  An unsigned int can only be positive.  If you only need to deal with positive numbers, you should use unsigned ints because the maximum integer number the type can hold will be twice as much as a signed int.

Correct.

We could get into the amount of values it can hold, but that maybe a little more advanced (like a 64 bit unsigned integer).

[BTCurious]

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[btc_artist]

@BTCurious  It took me 2 full seconds to get it.  I can't believe it took that long!  Good job. Would buy again.

[ineededausername]

It's the "within the next 25 years" part that makes the quote funny. Representing time with a signed int doesn't become a problem for a long time, so Satoshi was being sarcastic.

Am I the only one who finds this quote funny? Maybe it needs more context.

I found it funny, but that's because I have background in Unix timekeeping and C jargon. I assume the average person doesn't have this knowledge, and therefore it would not make sense to them.

I also found it funny.  Doesn't need more context right now, but maybe when "commoners" adopt Bitcoin...

[antihexe]

I wonder if he'll ever become more public about his identity. Certainly, at the very least, he's a funny guy.

[finway]

I don't get it 

[SomeoneWeird]

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hahahaahahahahah

[JusticeForYou]

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Theymos a little humorous, but (±1) for BTCurious

[deepceleron]

int prob_of_overflow ( myAge , actuarial.lifeTable )

[payb.tc]

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i found another one:

[BTCurious]

i found another one:

[btc_artist]

I found another one too!

[deepceleron]

I don't get it  

It's a lame joke, to use an alternate meaning of "signed" integers, besides "to include the negatives of non-zero natural numbers".

[terrytibbs]

I found another one too!

pic

No! That's a framed int.!

[notme]

I don't get it  

It's a lame joke, to use an alternate meaning of "signed" integers, besides "to include the negatives of non-zero natural numbers".

If only signed ints included the negatives of all non-zero natural numbers.....

[notme]

I found another one too!

pic

No! That's a framed int.!

It's signed too.