| --- Log opened Thu Apr 30 00:00:22 2015 |
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| 02:16 | <~Vornicus> | function foo(x) {a = 1; if (x) {a = 2;} else {a = 3;} return a;} |
| 02:17 | <~Vornicus> | What's the name for the, uh, thing that has happened here, as regards the a = 1 statement |
| 02:21 | <&Derakon> | AFAICT all it's accomplishing is ensuring that the name "a" exists outside the scopes of the if/else blocks. |
| 02:22 | <~Vornicus> | arg fuckin' block scope why do you exist |
| 02:23 | <&Derakon> | To avoid polluting the namespace? |
| 02:23 | <~Vornicus> | I have never once had block scope do anything but bite me in the ass, so I don't really believe that. But! Assume function scope, so that that line is in fact useless |
| 02:24 | <&Derakon> | ...then that line is useless and I don't know what you're asking about~ |
| 02:25 | <~Vornicus> | the point is -- the point is, static analysis will tell you that line is useless. What precisely will it tell me |
| 02:25 | <&Derakon> | Um, unnecessary initialization of a variable? I dunno. |
| 02:28 | < ToxicFrog> | Depends on the language. |
| 02:29 | <~Vornicus> | dammit people |
| 02:30 | <&Derakon> | I'll have you know I'm not a person, merely a somewhat clever chatbot. |
| 02:32 | <@Reiv> | You are a /very/ clever chatbot, then |
| 02:33 | <&Derakon> | No, you just aren't very clever people. |
| 02:33 | <@Reiv> | And I remain impressed by your ability to procgen Cities Skylines screenshots~ |
| 02:33 | <@Reiv> | Oooh burn ^.^ |
| 02:58 | | macdjord|wurk is now known as macdjord |
| 03:03 | | * Vornicus does battle with graphviz |
| 03:15 | <&McMartin> | Vornicus: "Dead code" |
| 03:15 | <&McMartin> | Also, what crack are you on with function scope being better than block scope that is about 90% of what is wrong with JS |
| 03:16 | <&McMartin> | gcc's warning for that, however, is "a is assigned a value that is never used" |
| 03:16 | <&Derakon> | Python's lack of block scope is also about 90% of what's wrong with that language~ |
| 03:16 | <&Derakon> | It's tripped me up on occasion. |
| 03:17 | <&McMartin> | Well |
| 03:17 | <&McMartin> | the Right Thing is lexical scope |
| 03:17 | <&McMartin> | However, that requires you to sacrifice minor things like, you know, a call stack |
| 03:17 | <&Derakon> | Wait, how does that differ from block scope? |
| 03:18 | <&McMartin> | C has block scope but not lexical scope. Lexical scope assumes the full set of powers that Scheme gives you with nested functions and closures and such. |
| 03:18 | < ToxicFrog> | Derakon: closures. |
| 03:19 | <&Derakon> | Ah, okay. |
| 03:19 | <&McMartin> | (And closures are also why you can't just have a call stack, because returning a closure means that your "stack" frame lives longer than the length of the function call.) |
| 03:21 | <&Derakon> | Closures are worth making a few sacrifices~ |
| 03:22 | <&McMartin> | That said, I suspect this is a split hair - the important thing is whether or not objects are destroyed the instant they go out of scope, and the guys that do that (mainly C++) like the term "block scope" |
| 04:17 | < [R]> | <Vornicus> function foo(x) { var a; if (x) {a = 2;} else {a = 3;} return a;} // This does the more correct thing |
| 04:18 | <~Vornicus> | [R]: right |
| 04:18 | <~Vornicus> | I was looking for "a is assigned a value that is never used" |
| 04:19 | <~Vornicus> | I did not feel like splitting hairs on scoping rules |
| 04:20 | < [R]> | It's used. It's returned. |
| 04:20 | < [R]> | OR actually nm |
| 04:20 | < [R]> | I'm tired. |
| 04:20 | < [R]> | But eitherway, if global.x (node) or window.x (DOM JS) happens to be setter, it does have a side effect. |
| 04:21 | < [R]> | But that's the only case. |
| 04:24 | <~Vornicus> | I was actually trying to avoid being any particular language |
| 04:24 | < [R]> | Ah |
| 04:37 | <@macdjord> | [R]: When it says 'a is assigned a value that is never used' the value in question is '1', not 'a'. |
| 04:39 | < [R]> | <[R]> OR actually nm |
| 04:39 | < [R]> | <[R]> I'm tired. |
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| 08:19 | < abudhabi> | >mysql |
| 08:19 | < catadroid> | >noyoursql |
| 08:20 | < abudhabi> | So, I have a field of type BIGINT(20) that can be NULL. And NULL is a perfectly acceptable value of that field. |
| 08:20 | | Kindamoody is now known as Kindamoody|afk |
| 08:20 | < abudhabi> | But when I use the mysql resultset converter, what I get is "0" when the field is NULL. |
| 08:21 | < abudhabi> | 0 is an invalid value; it would fail the foreign key check. |
| 08:23 | < abudhabi> | This is because getLong("whatever") returns a long, not a Long. |
| 08:23 | < abudhabi> | They don't even provide a method to give you a Long. |
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| 08:55 | <@macdjord|slep> | abudhabi: Is JDBC involved here? Because it has that problem too: http://thecodelesscode.com/case/152 |
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| 08:58 | < abudhabi> | It might be. I work many layers of abstraction above the actual DB access code. |
| 08:58 | < abudhabi> | I just write the resultset conversion routines. |
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| 09:01 | <@macdjord|slep> | Is there a isNull function? |
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| 09:21 | < abudhabi> | wasNull(). |
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| 13:49 | < abudhabi> | Interesting fencepost error. |
| 13:50 | < abudhabi> | I've got server-side pagination going. It works mostly right, except if there is *precisely* a multiple of the page size items. |
| 13:50 | < abudhabi> | In which case it reports one more page than there should be. |
| 13:50 | < abudhabi> | All the items are displayed, but the last page is empty. |
| 13:54 | < abudhabi> | Easy to fix, too. |
| 14:04 | <@TheWatcher> | The poor goat you sacrificed probably doesn't think it was easy~ |
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| 15:59 | | * Tarinaky headdesks over and over and over and over and over |
| 16:01 | <@froztbyte> | ? |
| 16:02 | <@Tarinaky> | Regular expressions |
| 16:02 | <@Tarinaky> | Imagine a face slamming into the desk of all mankind over and over again. |
| 16:03 | | * froztbyte can't really |
| 16:03 | <@Tarinaky> | For some reason the capture groups are disappearing |
| 16:08 | < ToxicFrog> | Language? |
| 16:09 | <@Tarinaky> | Gherkin+Ruby |
| 16:10 | < ToxicFrog> | I've got nothing |
| 16:12 | <@Tarinaky> | I'm also convinced the lack of a simple yarddoc/rdoc for Cucumber is a conspiracy to sell me books,# |
| 16:14 | <@Tarinaky> | Got it! |
| 16:14 | <@Tarinaky> | I needed to be using #invoke, not #match. |
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| 21:31 | < Harlow> | ugh, does anyone know anything about semaphores? |
| 21:31 | < Harlow> | (in c) |
| 21:37 | < ToxicFrog> | Harlow: I know about semaphores as an abstract concept, and I remember most of the pthread semaphore API |
| 21:38 | < ToxicFrog> | Harlow: if you're talking SysV/XSI interprocess semaphores...not really. |
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| 21:39 | < ToxicFrog> | Harlow: what kind of semaphores are you asking about? |
| 21:39 | < Harlow> | binary and counting |
| 21:41 | < ToxicFrog> | So you're asking about theory, not a specific API? |
| 21:43 | < Harlow> | its not a specific api |
| 21:44 | < Harlow> | http://pastebin.com/76YtXwQn is my code. umm i can explain a bit better... i think i can get it... |
| 21:45 | < ToxicFrog> | You say "not a specific API", but your code appears to be using the pthreads semaphore API |
| 21:46 | < ToxicFrog> | (also, pthreads has dedicated mutexes, you don't need to use a binary semaphore as a mutex unless you specifically want the ownerless semantics of a semaphore) |
| 21:47 | < Harlow> | I'm using binary semaphores as a mutex because i have been instructed to lol. |
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| 22:21 | <&jerith> | So, Java 7 is EOL. |
| 22:22 | <&jerith> | It wasn't even released when I last wrote Java code professionally. |
| 22:23 | <@TheWatcher> | Java 6 wasn't released the last time I wrote any Java code at all >.> |
| 22:24 | <@TheWatcher> | Thank gods |
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| 22:27 | <&jerith> | Java 6 was released while I worked at Amazon, but I don't think I ever used it. |
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| 23:02 | <&McMartin> | I should really look into what Java 8 has, since they Actually Tried that time |
| 23:03 | <&McMartin> | By which I mean "finally noticed C# was relevant" I think =P |
| 23:03 | <&McMartin> | The last time I used Java as Java, Java 6 was out and offered some things that would have made my life easier, but I couldn't use them because nobody had Java 6 installed. |
| 23:04 | <&jerith> | Doesn't Java 8 finally have closures? |
| 23:05 | <&McMartin> | Also "call this cleanup method when you leave this block", which it has direly needed for over a decade |
| 23:15 | <@Reiv> | wait, you can manually control garbage collection now? |
| 23:27 | <&McMartin> | You've had hooks into that for awhile |
| 23:27 | <&McMartin> | No, what this is not not needing to do 47 nested try-finally blocks to not leak your database connections |
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| 23:38 | <@Reiv> | ... oh yes that would be nice |
| --- Log closed Fri May 01 00:00:40 2015 |