The 2nd Monitor

rolfl

12:01 AM

It's normally measured in unicycles ... the number of times a unicorn goes to sleep....

6

If the unicorns are not sleepy, that can take a while.

Malachi

I need to read up on these kinds of things, I just don't know enough about Unicorns

David Harkness

My friend just learned to ride a unicycle, so now I'm really confused.

@Jamal I'm happy to delete those comments if you like. I didn't want the OP to think there was a straight-up bug in the code, but my comments don't make that clear anyway.

Jamal

@DavidHarkness About the C# naming, or the comments on my answer?

David Harkness

@Jamal the latter, on your answer

It's pretty clear you're answer says, "refactor this and change the API"

Jamal

@DavidHarkness That's fine. I suppose someone else may end up correcting me if needed. There are no other C++ reviewers around now (unless monkey is now a C++ reviewer).

@Corbin is better with storage containers anyway, so he should be able to tear that question apart. But the OP could still conclude from my answer that much needs to be changed.

David Harkness

12:09 AM

I can read/write it, but I haven't done so for a long time, and it was before the standard collection library. But I can say your suggestions match what I'd do in Java and PHP.

Jamal

Another complication, to me, is that it doesn't appear that he's trying to reinvent std::map. In such cases, I'm stuck with just determining if any general bad practices are done.

David Harkness

Well you saved his bacon with the DeleteAt bug :)

Jamal

It did look smelly to me, but since I didn't quite know how to handle it, I merely brought it up. Throwing an exception may work, but I was also too lazy to see if erase() throws.

syb0rg

@kleinfreund Not at all. Feel free to sent a PR whenever, and I'll usually get around to merging it pretty quickly.

nhgrif

12:34 AM

I actually quite like this question now

3

Q: iOS7 ChessGame UIChessboardView Design

Thank you for the fast and constructive responses, I think I better understand my issue and the mindset that's expected of me. I've been designing UIChessboardView in the likeness of UITableView using protocols and delegates. UIChessboardView.h @interface UIChessboardView : UIView @property ...

Although, I wonder... am I beating a dead-horse that most of my answers say "Look at ______ class that Apple already provides--model your class after this pattern that's already been laid out for a similar class Apple has"?

Corbin

12:52 AM

@Jamal hmmm.... there's a lot on that question that I want to comment on, but I'm not confident enough that I would be correct. I'm just not sure if I understand the goal correctly. Why bother sorting the vector at all? I wonder if he could get away with a std::map with a custom comparator. Seems like he probably could unless there's something I'm missing.... Certainly an interesting post though. Will have to thoroughly look into it when I can.

Jamal

@Corbin I wasn't sure of his intentions, either; I was going after the practices used (and to kill another zombie). The OP hasn't been here in a while, but he's still active on SO, so he may come back.

Is my answer decent at least? I'm not quite sure about Find(), especially given his goals.

Corbin

Hrmmmm, I just don't see why std::set (meant set when I said map earlier ;p) wouldn't work. What did he mean by this? "If I use std::set, I need to calculate the index first (such as using distance function) when adding an item under a tree node and need a binary search when deleting and accessing an item."

Jamal

I'm not sure. I even removed sorting because the code didn't seem to perform any kind of sorting.

Corbin

@Jamal it's a strange API compared to the standard style, but it's valid in its own way. It's a relic of C in my opinion to structure interfaces like that, but it's arguably just as valid. The problem with if (find()) { idx = lowerBound() } is that you turn end up doing two searches. By having find return both items of data at the same time (namely "Was it found?" and "where is it?") you avoid the second search.

There's certainly something off about the interface though. He really should be leveraging exceptions in a few of the places instead of bool returns with output parameters

Jamal

The bools is another thing that seemed fishy to me. The standard library doesn't do that, either.

Corbin

12:59 AM

It's typically done to either avoid exceptions or because the person comes from C and is using C paradigms.

Jamal

Ah

Corbin

Blerh there's just a lot of strange stuff about this. He uses key comparisons to determine equality. That feels.... wrong.

Jamal

hi @hichris123!

Corbin

Why not just use a map of key -> std::unique_ptr if you have to know the key anyway? This just makes no sense.

I would love to know what his specific use case is. I would be very surprised if there's not a better option once his actual use case is known.

Mat's Mug

My first asp.net-mvc-4 question!

0

Q: Inheriting DefaultControllerFactory to enable Constructor Injection

I've decided to [finally] get into some web programming, and so I'm diving into asp.net-mvc-4. I want to architect my application using Dependency Injection and Inversion of Control, so in order to enable constructor injection in my controller classes, the first thing I did, was tweaking global....

c# asp.net-mvc-4 dependency-injection controller

Corbin

1:02 AM

Oh... apparently that's what I thought a year ago too: "It seems like there would be a weirdly specific use-case for this class? But interesting, nonetheless."

hichris123

Oy.

@Malachi Why are you guys getting swag?

Jamal

@Corbin The OP hasn't even commented on it at all. :-/

Corbin

Yeah. I want to answer it, but I'm just not sure I can until the OP comes around. Otherwise, my main comment would only be "use a std::map<int, std::unique_ptr<T>>."

hichris123

@Malachi 6-8 weeks

Jamal

@Corbin I didn't "rush" it, right? I just found a zombie that I remotely understood. He may still benefit from advice on this, at least to avoid bad habits.

Captain Obvious

1:06 AM

2

Q: Inheriting DefaultControllerFactory to enable Constructor Injection

I've decided to [finally] get into some web programming, and so I'm diving into asp.net-mvc-4. I want to architect my application using Dependency Injection and Inversion of Control, so in order to enable constructor injection in my controller classes, the first thing I did, was tweaking global....

c# asp.net-mvc-4 dependency-injection controller

hichris123

Why are there so many good SE sites that I have no time to contribute to? :(

Captain Obvious

0

Q: Special usage of metaclasses in python

I was messing around with python metaclasses and I came across something very intriguing that I didn't know existed or was valid: class Meta(type): def __new__(metacls, name, bases, kwargs, extra_thing=None): if extra_thing is not None: print(extra_thing) return s...

python classes meta-programming

Corbin

@Jamal I like your review over all, but your critique of Add is a bit off in my opinion. I would probably have int add(std::unique_ptr<T> element) that returns either the index of some special end() value if adding failed. That way you avoid the bool/outparam complications but still get all the data you need out of it.

(and it's consistent with std::map, std::set, etc)

actually wait... they return a std::pair<bool, iterator> now that i think about it

so that's probably what i'd do. that way you get the index of hte one that already exists

Jamal

Yeah, that. I guess I was still thinking vectors, not maps.

Or should I just go with your first point: have it return the index?

Malachi

1:34 AM

@hichris123 they havent emailed me to get my shipping address yet

Captain Obvious

0

Q: Link in between parenthesis

A common pattern while creating links is adding a help link in between parentheses. Something like this: <div>(<a href="help">more help</a>)</div> In haml, the best way I found some ways to write it (using the link_to rails helper): %div ( = link_to('help') ) or %div = raw "(#{lin...

ruby-on-rails haml

hichris123

@Malachi Why are you getting swag?

Jamal

incoming-linked-list-question

Mat's Mug

82

Q: What happens when you plug a UPS into itself?

UPSey daisy; so we had a little ... incident ... Pretty sure that has power. We're past that now, and things are returning to normal. It's only appropriate that we take a moment to think about the folks that got pulled out of bed and worked their knuckles to the bone to get things back up and...

discussion community

hichris123

Ah.

Reminds me: I need to ~~incessantly bother~~ ask Tim for my mod hat.

Captain Obvious

1:48 AM

0

Q: STL Stack Implementation

I implemented std::stack from the STL for deeper understanding of the language and memory since I still am only a beginner. I implemented the stack using a singly linked list. Header file: /* Header file for abstract data type "STACK" implemented using a linked list */ #ifndef STACK_H #define...

c++ beginner memory-management template stack

Jamal

@hichris123 The ones with a diamond in the front? We can request those?

Malachi

82

Q: What happens when you plug a UPS into itself?

UPSey daisy; so we had a little ... incident ... Pretty sure that has power. We're past that now, and things are returning to normal. It's only appropriate that we take a moment to think about the folks that got pulled out of bed and worked their knuckles to the bone to get things back up and...

discussion community

Mat's Mug

4 mins ago, by hichris123

Ah.

;)

Malachi

@Mat'sMug LOL

rolfl

@hichris123 - no hat for you, me and @Jamal ...

Only for elected mods.

Jamal

2:02 AM

@rolfl :-(

hichris123

@rolfl Nope, Undo got one. He said to ping Tim in TL.

Jamal

@hichris123 He's just a mod on Software Recs, right?

hichris123

Yup.

Jamal

So we just... ping Tim? That's it?

hichris123

in Charcoal HQ, Apr 6 at 2:43, by Undo

@Jamal I guess so.

Jamal

2:05 AM

:O

Mat's Mug

@JeroenVannevel the NinjectControllerFactory still needs to be coded as far as I understand, after reading a bit about Ninject+MVC...

Captain Obvious

0

Q: My web site is messed up

The Jquery script and other javascripts are functioning correctly, however the page displays this IT WAS WORKING BEFORE instead of this HERE IS THE BASIC HTML CODE <head> <meta name="description" content="Passion for difference" /> <meta http-equiv="Content-Type" content="text/h...

javascript html html5 jquery-ui

Mat's Mug

        private readonly IKernel _kernel;

        public NinjectControllerFactory()
        {
            _kernel = new StandardKernel();
            ConfigureKernel();
        }

        private void ConfigureKernel()
        {
            _kernel.Bind(t => t.FromThisAssembly()
                               .SelectAllClasses()
                               .BindDefaultInterface()
                               .Configure(binding => binding.InRequestScope()));
        }

@CaptainObvious lol

Jeroen Vannevel

@Mat'sMug Does it not auto-generate that class?

Mat's Mug

didn't for me :(

Jeroen Vannevel

2:10 AM

huh

Well, it's been a while so it might be

Mat's Mug

I deleted the post, I'll flesh up the app and see if I get something a bit less trivial to post for review ;)

Jeroen Vannevel

But there's really almost nothing to it

Mat's Mug

well for now I have the above, and this:

        protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType)
        {
            if (controllerType != null)
            {
                return (IController)_kernel.Get(controllerType);
            }
            else
            {
                return null;
            }
        }

        public override void ReleaseController(IController controller)
        {
            _kernel.Release(controller);
        }

Jeroen Vannevel

This is some old discontinued project of myself I base on: github.com/Vannevelj/NoName/blob/master/NoName/NoName/App_Start/…

I have the feeling I also added something elsewhere the in the project but I can't recall where

oh right, global.asax

ControllerBuilder.Current.SetControllerFactory(new NinjectControllerFactory());

That's all I needed to get it working

Mat's Mug

makes sense

but this:

    private void AddBindings() {
        kernel.Bind<DatabaseContext>().ToSelf().InSingletonScope();
        kernel.Bind<IUserRepository>().To<UserRepository>().InRequestScope();
        kernel.Bind<IShowRepository>().To<ShowRepository>().InRequestScope();
        kernel.Bind<INewsBulletinRepository>().To<NewsBulletinRepository>().InRequestScope();
        kernel.Bind<IFAQRepository>().To<FAQRepository>().InRequestScope();
        kernel.Bind<IAdministrator>().To<Administrator>().InRequestScope();

I'd use Ninject.Extensions.Conventions and do like this:

        _kernel.Bind(t => t.FromThisAssembly()
                           .SelectAllClasses()
                           .BindDefaultInterface()
                           .Configure(binding => binding.InRequestScope()));

BindDefaultInterface binds any ISomething to Something

Jeroen Vannevel

2:14 AM

Then you can drop all the InRequestScope()s?

Mat's Mug

there are methods to further refine the conventions, like I can say I want all classes ending with Service to be InSingletonScope if I want, except those under namespace FooBar

lol then you can drop all the kernel.Bind calls!

Jeroen Vannevel

Oh wow, that BindDefaultInterface thing is pretty neat

Mat's Mug

totally awesome in fact ;)

Jeroen Vannevel

I'm going to look into those conventions if I ever do some asp.net mvc stuff again

Mat's Mug

or just if you ever use Ninject again!

Jeroen Vannevel

2:18 AM

Yeah, my DI habit isn't very strongly developed outside of an mvc structure

and since most of my projects involve backend stuff with perhaps a console window..

I have to incorporate it more

Mat's Mug

console apps are the easiest to DI with!

there's even a way to do DI with PowerShell if you're willing :)

ASP.NET (not MVC) is a bit of a pain though

rolfl

So, @Mat'sMug - what're you going to do with your question?

It's sort of answered in the comments.

Mat's Mug

@rolfl I deleted it

rolfl

Ohh ... I see that now.

Mat's Mug

well technically it could be reviewed as a poor man's DI ControllerFactory

but now that I have one set up with Ninject...

Mat's Mug

2:46 AM

(thunderstorm... might go poof)

Malachi

@hichris123 that is so Cool!!! I want one!

I can't wait for my swag

2

Jamal

incoming-meta

Stack Exchange

3:02 AM

1

Q: Proposal to rename [programming-challenge]

In Rename [code-challenge] to something more site-specific, it was proposed to rename code-challenge to avoid confusion with programming-challenge. That renaming (to community-challenge) has been completed. However, part of the problem is that programming-challenge could also be better named.

discussion tags retag-request

Captain Obvious

3:17 AM

0

Q: combine two indexOf and regex into one using javascript

I have tried combining these two conditions into one, but the results were not what I wanted. var name = 'Ron & Peggy Sue'; //or 'Ron and Peggy Sue'; if ( name.indexOf('&') > -1 ){ names = name.split(/ & /g); } if ( name.toLowerCase().indexOf(' and ') > -1 ) { n...

javascript

David Harkness

@StackExchange The only problem with keeping [online-judge] and [project-euler] different is that there really are other sites (someone just posted a question about oj.leetcode.com

Here's the tricky bit, it's called LeetCode Online Judge ... but it has you fill in a method they provide that takes pre-parsed input--no I/O manipulation required.

Is this an [online-judge] even though it doesn't fit the description for it?

Hmm, guess this should have been in comments lol