| --- Log opened Sat Dec 20 00:00:03 2014 |
| 00:41 | | Derakon[AFK] is now known as Derakon |
| 00:42 | | * Derakon readsup. |
| 00:42 | <&Derakon> | Maybe it's my insistence on thoroughly naming any remotely non-temporary objects I work with, but currying isn't a God Tech for me. |
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| 02:09 | <&McMartin> | Derakon: The point is that having to formally define lessThanThree() is not actually any clearer than being able to write (<3) as you do in Haskell |
| 02:10 | <&McMartin> | But this also assumes you're writing in a language that makes super-heavy use of higher-order functions, which is, well, not many of them, because THAT'S WHAT OBJECTS AND METHODS ARE FOR |
| 02:17 | <&McMartin> | (Not a fan -_-) |
| 02:17 | <&McMartin> | (But then, hence the functional accent) |
| 02:18 | <&McMartin> | I have been pointed at the language Rust, which appears to be trying to hybridize C and Haskell while still being basically C |
| 02:18 | <&McMartin> | I'm skeptical but that will be a Great Big Deal if they manage to square that circle |
| 02:19 | <&McMartin> | (Type inference, ML-style immutability by default, modes where you can prove the heap is never touched, etc) |
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| 05:47 | <@celticminstrel> | Most of this initialization code is a) setting stuff to 0 or b) setting stuff to a default-constructed version... which is the implicit behaviour anyway, so I guess I can just delete most of this. |
| 05:52 | <@celticminstrel> | (Was initializing static data to 0 not the default in ANSI or pre-ANSI C?) |
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| 11:35 | < addicted_to_internet> | hey :) |
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| 20:14 | <&McMartin> | celmin|away: No version of C actually initializes things to anything - you get random RAM contents. This was the basis of the Heartbleed bug. |
| 20:14 | <&McMartin> | In C++, primitive data types do not have constructors and continue to behave like C as far as I know. |
| 20:23 | < [R]> | There's a special variable that'll get initialized to zero though, goes into it's own memory area. Can't remember if that's C's thing or ELF's though. |
| 20:25 | < [R]> | Also static variables appear to be initialized to zero. |
| --- Log closed Sat Dec 20 20:50:53 2014 |
| --- Log opened Sat Dec 20 20:51:01 2014 |
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| 21:18 | | * abudhabi frowns. |
| 21:19 | < abudhabi> | For some reason, I'm only getting int-coordinate versions of graphics drawing methods in my Graphics2D. |
| 21:19 | < abudhabi> | Anyone know why that could be? |
| 21:21 | < abudhabi> | Ideally, I'd like a way that accepts doubles for coordinates. |
| 21:22 | < [R]> | It's fairly normal for 2D rendering systems to only work on ints. |
| 21:24 | < abudhabi> | How do I get around that? Do I just call .intValue() whenever I feed these functions? |
| 21:24 | <&McMartin> | It looks like Graphics2D's direct renderers only work on ints, with the subpixel operations only applying to its values |
| 21:24 | <&McMartin> | They're primitives |
| 21:24 | <&McMartin> | You should be able to just say (int)d |
| 21:24 | <&McMartin> | Er, subpixel operations restricted to transforms, above |
| 21:24 | < abudhabi> | Ideally, I'd like to round properly. |
| 21:25 | < abudhabi> | (int)d just drops the fraction, right? |
| 21:25 | <&McMartin> | Uh, sort of |
| 21:25 | <&Derakon> | Oh, I am reminded: waaay more languages need to provide int(), float(), etc. as functions. |
| 21:25 | <&McMartin> | It also requires you to be in the int range, which doubles go way beyond. |
| 21:25 | <&Derakon> | So I can do "int(expr)" instead of "(int) (expr)". |
| 21:26 | < [R]> | Too little benefit |
| 21:26 | <&McMartin> | Derakon: Or you can be like Go and just have that *be* the cast syntax. |
| 21:26 | <&Derakon> | McM: if you need a double's range for drawing then your display is crazygonuts |
| 21:26 | <&McMartin> | Also, static_cast<int>(expr)~ |
| 21:26 | <&Derakon> | McM: yeah, that's fine too. |
| 21:26 | <&McMartin> | Derakon: Right, but this is part of why floor() and ceil() return doubles, not ints |
| 21:26 | <&Derakon> | I just hate the double-parens that Java forces you to use because there's only one casting method. |
| 21:26 | <&McMartin> | Yes |
| 21:26 | <&McMartin> | C got this wrong |
| 21:51 | < abudhabi> | McMartin: The double part is mainly for supporting numbers that are arbitrarily small, but that will be significant with sufficient scaling. |
| 21:54 | <@ErikMesoy> | i.e. zoom? |
| 21:54 | < abudhabi> | Yes, zoom. |
| 22:15 | <&McMartin> | The scaling transforms in Graphics2D *do* use doubles. I'd suggest defining the things in terms of integers and scaling down, rather than in terms of tiny fractions and scaling up. |
| 22:22 | < abudhabi> | Hmm. I'd have to figure out what the smallest thing I want to model is, then. |
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| 23:06 | <@celmin|away> | C++ allows int(x). |
| 23:06 | <@celmin|away> | However, it does not allow unsigned int(x). >< |
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| --- Log closed Sun Dec 21 00:00:19 2014 |