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64 bit integers on 32 bit systems

Name: Anonymous 2007-11-04 14:23

I doubt it's safe to assume that long long can hold it.

So, if i want to pretend i'm an expert programmer for a while, how do i solve this in a portable way?

Basically i'm after the method to use here because i'm a eurofag so english programming terms are a problem, i don't know what to search google for.

I saw something on wikipedia that well written programs can compile on both 32 and 64 bit systems but how do you accomplish that?

Name: Anonymous 2007-11-04 14:42

int64_t, etc.
But such specific types are more for binary file formats and networking, where programs on different architectures need to be compatible. If you just need some memory to keep a large integer, use long long.

Name: Anonymous 2007-11-04 15:01

Yeah it's just for a large integer, i guess relying on each systems implementation of long long does make sense in a way.

I don't have any lights in my apartment but so far i haven't found anything in k&r about long long. What does the standard say that each implementation of this should be?

Name: Anonymous 2007-11-04 17:06

>>1
use javac

Name: Anonymous 2007-11-04 17:16

>>1
long long is c99, and >= 64 bits.
bye.

Name: Anonymous 2007-11-05 6:11

>>1
By 'eurofag' do you mean German? Because Germans and French are the only people that come to mind, who can't be bothered to learn English.

Name: Anonymous 2007-11-05 13:11

>>6
Both the German and the French are fluent in English... you must be thinking of the lowest of the low -- the Spainards.

JAJAJAJAJAJAJAJAJAJAJAJAJAJAJAJAJAJAJAJAJA

Name: Anonymous 2007-11-05 13:45

Germans are annoying. `Bann'? `Logg'? Ugh!

Name: Anonymous 2007-11-05 13:50

>>8
Jew detected.

Name: Anonymous 2007-11-05 14:08

>>9

That's funny. And to think someone yelled `skinhead' at me the other day.

Name: Anonymous 2007-11-05 14:13

>>10
Jew with extreme hair loss?

Name: Anonymous 2007-11-05 14:18

>>11

Maybe.

Name: Anonymous 2007-11-05 14:22

Interesting fact: If you are a Jew and you have no hair, you are most likely black. Check your skin colour, >>8.

Name: Anonymous 2007-11-06 23:20

i am a person with no skin colour

Name: Anonymous 2007-11-06 23:20

i am a person with no skin

Name: Anonymous 2007-11-07 0:18

>>15
I'm a skin with no person... let's cons ♥.

Name: Anonymous 2007-11-07 0:32

long long on 32-bit systems will still be 64 bits and safe. 


Floating point numbers are usually 64 bits, even on 32 bit systems, and compute just fine there.

Name: Anonymous 2007-11-07 1:39

>>17
Floats are 32-bit. doubles and long doubles are 64-bit. Easy misconception.

Name: Anonymous 2007-11-07 2:08

>>18
long doubles may be 128-bit, as may be long longs.

long long cat = 170141183460469231731687303715884105727;
printf("%lu",cat);

Name: Anonymous 2007-11-07 2:45

>>19
that's what she said ;)

Name: Anonymous 2007-11-07 4:14

{code]long dong[/code]
lol

Name: Anonymous 2007-11-07 7:42

>>7
I know of several Spaniards who write much better English than native Americans. Then again, that's not that great an achievement.

Name: Anonymous 2007-11-07 15:18

>>22
fo shizzle mah nizzle

Name: Anonymous 2007-11-07 17:47

>>22

u meen dis no rite englsih spleling

no wai

Name: Anonymous 2007-11-10 11:39

>>22
well that shouldn't be too hard since native americans didn't even speak english a few hundred years ago

Name: Anonymous 2007-11-13 8:33

I are German and do feel offended by people suggesting me not know Englisch very well!!!111

Name: Anonymous 2010-11-15 9:25

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