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Comments:
<0> French . . . it would seem
<1> found it! http://www.kame.net/newsletter/19980604/
<2> well, the name SI is french (systeme international)
<3> silly french and their POO :)
<2> hehe :)
<2> but in europe, we don't use all SI units either
<2> kelvin for instance
<4> Isn't Celcius SI too?
<5> DrkMatter: Nope.
<6> Is euro SI? or is it dollar?
<7> DrkMatter what temperature IS SI then?
<4> Well, Kelvin I guess.
<2> you better pay attention, vawjrwrk :)
<7> not fair
<4> But Kelvin really isn't handy.
<7> Celsius almost certainly is SI
<5> Celsius is more used than Kelvin
<5> Yeah.
<8> since they're both linearly identical..
<8> does it really matter? :)
<5> =)
<3> let's switch to Rankin ;)
<7> there's an h in there
<4> Well, the SI webpage states Kelvin is.
<2> i read that celsius is a SI derived unit
<7> who is it that decreed no degree symbol before the C ... I thought that was SI
<2> so it is SI
<8> well, to do some calculations you need to convert to Kelvin first.
<8> but [never?] do you need to convert to C first.
<7> huh?
<8> vaw, I think for the math to work out for the equations (as written) in most textbooks
<8> chemistry and what not
<2> Swish: unless it uses a difference of temperature :)
<4> Well, yes, Kelvin si what you use in maths for absolute temperatures.
<8> mathieu, true :)
<7> mathieu well then, K and C are teh same
<8> the 273 cancels..
<8> but yeah
<4> But for msot use (IE, relative temperatures, and everyday use), Celcisu are a lot more handy.
<7> 273.16
<8> ooh there's a .16 :)
<7> iirc
<2> .15 i thought :)
<5> .15 AFAIK
<4> It's .16
<2> it's .15
<5> DrkMatter: Not true.
<5> http://en.wikipedia.org/wiki/Temperature_conversion_formulas
<4> I got my info straight from the BIPM (Bureau International des Poids et Mesures / International office for weights and measures)
<9> does anyone here know if the vtable of function pointers when you use virtual member functions is guaranteed to be in cl***-order or if its ordering is undefined?
<7> wikpedia has a typo
<4> http://www.bipm.fr/fr/si/base_units/
<4> I think THEY are the standards organization here, not wikipedia. =P
<4> http://www.bipm.fr/en/si/base_units/
<4> There, for you non-french speaking barbarians. =P
<5> I've learnt as "273.15", I may be wrong.
<7> tiocsti not defined that I know of
<2> http://www.googlefight.com/index.php?lang=en_GB&word1=273.15&word2=273.16
<2> google says it's 273.15
<2> :)
<7> tiocsti the _location_ of the vtable, if it exists isn't defined either
<5> =))
<7> oooooooh google
<8> haha that's funny
<9> vaw, yeah that i dont care about
<4> mathiue: MY info coems from the BIPM! They'Re the one who -set- these things.
<7> tiocsti why would you care about the other, if you cannot reliably find it
<9> i was trying to change an abstract interface in a shared library and have existing code still call the right function as long as i _appended_ member functions, and didnt change the order of existing functions
<2> DrkMatter: bipm has a type
<2> typo
<9> it works in compilers that i've looked at, but i dont have the ansi standard
<2> http://www.bipm.fr/fr/si/si_brochure/chapter2/2-1/2-1-1/kelvin.html
<7> tiocsti I'm not sure you can pull it off
<4> -_-
<4> Yes, and the typo is the .15 one.
<4> Note how .16 is used everywhere else.
<5> How can you tell ?
<5> Maybe they were high..
<8> wow
<2> hm
<8> I googlefighted me vs. bill gates.
<4> There are two sues of .16, and one of .15
<8> he's only twice as cool as I am.
<4> *uses
<4> Oh, and vawjr: FRom the BIPM, you should still put a degree symbol before Celcius, but not before Kelvin.
<2> after reading: 273.15 kelvin = freezing of water at 1 atm, 273.16 kelvin = triple point of water
<4> I say that ahd a float to double conversion fiasco.
<7> DrkMatter ah, thanks
<2> "The Celsius scale sets 0.01 C to be at the triple point of water " (wikipedia)
<9> vaw, is there a design pattern for extending an interface in a shared lib without needing to rebuild consumers from source?
<7> tiocsti C++ is silent on the topic of "shared libraries"
<9> vaw: well of course, but it would apply to any case where you have mismatched abstract interfaces
<9> vaw, thats just the only practical example
<10> tiocsti: I've used an object factory for that situation.
<10> The client code only sees the top library in the chain, which exposes a factory. All requests for object creation are done through that factory.
<10> The trick is to create the factory through another factory.
<1> a FactoryFactory?
<10> That way other libraries can hook into the factory and substitute their own implementations.
<10> The client code is none the wiser.
<10> The Gang of Four book has a couple of applicable patterns.
<1> I should prolly get around to reading that one of these days
<10> Googling for "factory pattern" should return enough stuff to keep you up reading until well into tomorrow morning.
<11> wtf, can't use string in a case ?
<4> switch statements operate only on integer values.
<11> how do i enum strings ?
<4> You'll have to use if/else if/else if [...].
<11> not if i use enum
<4> Well, yes, but enums aren'T strings.
<11> meh
<4> They're integers. But if it fits your need, use'em.
<11> how ?
<11> enum {"QUIT" = 0, ...} ?
<4> Well... That won't work.
<4> enums are just series of integers.
<4> I meant that if you can substitute your strings with a serie of integers, you'll be able to use a switch statement.
<11> ahh
<4> Otherwise, it's if/else if for you.
<11> thx
<10> Or use a std::map to make an ***ociation
<7> enum strings???
<7> or if you havn't mucked about with the ***igned values, an array for mapping
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