At a low level, how does Pex work?
Thanks
Nikolai Tillmann answered the same question on the Pex forums: http://social.msdn.microsoft.com/Forums/en-US/pex/thread/71c90936-b3af-4d90-af87-f6ecba797cb7
There are quite a few Channel 9 videos that explain how Pex works but I'd take a look at this one first. A lot of the episodes of The Verification Corner also go over the concepts even if they don't say so explicitly.
Related
Did anyone ever met links to StackOverflow sandbox for their own API?
I have found couple of questions which were made for testing answers( https://meta.stackexchange.com/questions/51812/the-api-sandbox) , but no way to test questions.
Well, it seems that there is no such thing as sandbox for stackoverlow API. Just make a test question/answer, mark them properly and then delete.
For anyone who will be asearching for sandbox. You can do as mentioned above and then delete the question. You can also make api for the answer and make similar for question (they are not that much different). The same qnswer was received at meta.
That is awesome! I reallyy hope that will work and I would be able to test. Also, probably anyone can use this answer as testing one. Any way, that's just an offer!
Can someone please help me understanding which one is more efficient strstr() or KMP as recently I was doing a question on SPOJ and found that strstr() was in one way or other faster than KMP..
someone please explain the mystery behind this..
You are comparing apples with pears, strstr() is a function to find substrings, KMP is an algorithm to do it, so strstr() could theoretically be implemented using KMP. You need to find out which algorithm is the strstr() in question implementing to give a statement.
Take a look at this answer and the comments on it.
Using other questions on here I found Amit's Page on Games including a section on Hex Tiles which also links to a game coding wiki here.
I am looking for suggestions:
(a) libraries, engines or code samples in any language. I have found one in python, PGU+pygame, but looking for more.
(b) open source hex-tile tactics or strategy games.
Because google can find things for me, what I'm hoping is that you have actually used one. So if you googled and then posted, then this is nothing better than let-me-google-that-for you. Much appreciated if (i) you have used it, (ii) seriously, any language at all is okay, C/C++, python, java, flash/flex, whatever.
Related question and another related question but .net
Battle For Wesnoth is a complete, open-source, turn-based strategy hex-based game. Its written in C++. Quite a good game too.
I'm sure there would be something valuable in there, although I've only have a brief browse of the source myself.
I used PGU a number of years ago to make a hex based game for PyWeek, you can take a look at the code if you want to. :)
http://www.pyweek.org/e/PySwec/
I've got a more updated version at home which is quite a bit better but unless you actually want to play the game you should be fine with that. :)
Based on another question here on stackoverflow, there is XConq, an open source turn based tile game.
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Lately I've been job hunting, and for the most part, they would ask me what type of IDE I like to use.
Now, I usually answer with;
Well it all depends on what language I'm developing it in. If it's Java then it would be Eclipse, if AS3 then either Flash CS4 or Flex Builder 3. For HTML, CSS, PHP, and Javascript, I prefer to use PsPad. (almost identical to Notepad+ or textmage).
Now why is it that they always seem to become immediately disgusted with the fact that I said PSPad? Truth be told, I don't like to use DreamWeaver because I feel like it's bloated. I mean to each his own I guess ... but I've tried using it and I honestly work faster with PSPad.
Should I start using Dreamweaver just to put in my resume?
Theoretical Advice
It's quite reasonable not to like IDE's, though you do need to acknowledge their usefulness, and everyone has their own most efficient ways of working, which makes sense.
Practical Advice
You can't deal with recruitment agents logically, I'm afraid. You need to check their checkboxes, and get past them, to talk to someone real.
Once you get into a real interview with a programmer, be honest about everything, about why you don't like IDE's (especially DreamWeaver) and then you can just hope for the appropriate outcome.
But with recruitment agents you need to appreciate that they don't understand anything about our industry; and you typically need to give them the answers they want.
I'd say your are "familiar" with DreamWeaver and leave it at that.
Maybe they don't know what PSPad is - I didn't. As for Dreamweaver, I would actually look down on somebody who uses Dreamweaver. It's much better to be able to code from scratch.
And to answer your question - it's definitely not wrong to not prefer a single IDE for everything. You should use whatever tools you feel comfortable with, and if it's different for each language, then so be it.
No, just like it's not wrong to prefer:
Horses over cars;
Kerosene lamps over electrical lighting;
Aqueducts over water pipes;
Storing food in a cold cellar instead of an "icebox";
Punch cards over keyboards and visual displays;
and so on.
Sucks that we have to go through people who care not about the programmer but the programs we use!
I mean I think I lost a few chances just by trying to explain that I am decent with HTML and CSS but don't use Dreamweaver (because I cant afford it).
Though I am not that worried, I did eventually stumble across a person who does understand these things and love working for him. So no it's not wrong, you're just unlucky to have come across wrong recruiters.
Good luck finding a job though!
PS It doesn't take more than 10 minutes to get familiar with an IDE, so always a plus to try out some (so you're not completely lost later).
One way to spin such answers is to make yourself the expert. So you could say something like, "I'm familiar with Dreamweaver, but once I got really good at coding HTML, CSS etc. I found it more efficient to just use a really fast and simple text editor like PSPad."
I used the same trick after I worked in C++ and was applying for a Java job. In that case, it went like this, "Well, the nice thing about having started in C++ is that it's such a rich and low level language that once you've done that, Java seems really easy by comparison."
The recruiter doesn't know what DreamWeaver is -- they just know what a commission is. Show them you'll make them one by selling yourself to their principle and they'll send you out to interview more often than not.
Look: when you're job hunting the person who is looking at your resume is either a:
Human Resource person (Needs a person to fill a position or just interview)
Head Hunter (Needs a body to fill a job so they can get their placement pay)
IT Manager (Needs a qualified soul for the best price).
Depending on the person interviewing you over the phone or in person they are just trying to get the best candidate for a position. Sometimes they have prepared questions to see how much you know, how you think and do you match up to your resume.
I went to a .NET code camp once and a head hunter was asked how one goes about showing the interviewer their experience. The head hunter said show them your work:
Bring a laptop with samples of your work.
Print out code sample.
Direct the interview to a website with samples of your work.
Things like this get you past the IDE question real quick.
As silky alluded to above, it's probably a simple mechanism in use by the HR agency to filter out candidates. If you're not using an IDE on the selected list, you're filtered.
For me, when interviewing, I would find somebody who says they use VIM or Emacs as their IDE to be a more advanced developer than perhaps somebody using Notepad.
Last time a CTO asked me what I use, I immediately said "Emacs, of course". He said, "OK, now I'm interested!". I've been working there since.
(I don't know why PSPad would be any worse than Dreamweaver or Eclipse. I find all IDEs hard to really customize. Everybody I work with has gobs of elisp, much of it shared, to make it much more productive for our project.)
Maybe you're talking to the wrong people for the kind of job you want. Where are you finding these "they" who ask you this?
It's certainly not worse than depending on one.
I use EMACS as my primary programming environment. It has a few big advantages:
It's available practically everywhere.
You can use it without having a window system installed.
You can use it over SSH.
It lets you edit multiple files at the same time.
It understands most programming languages.
You can run subshells.
Oh, you can read your email from within it, too.
This question has no good answer. It depends on the culture of the place you're interviewing for. At my current job, I play up my Unix experience and can impress other folks that also enjoy non IDE toolsets. vi, one liner scripts, etc. At my former gig, people were enamored with Visual Basic, and thought the command line was horrific. I'll bet if you were interviewing for the company that develops PSPad you would not have had the same result. ;-)
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Over the years, I have tried many times to find a good, easy to use, cross platform tool for some basic software system diagramming. The UML tools I have tried seemed to get in my way more than help. So far, the solution I keep returning to is Visio, which is both Windows-only and expensive. Although its far from ideal, it does provide some basic building block and allows things like grid placement and zooming. I wanted to see if there is a great tool out there that I'm just missing that fits at least some of the criteria mentioned.
Graphviz FTW!
What could be more hardcore than writing a text file to convert into a diagram etc...
GUI, we don't need no stinkin' GUI!
You could try DIA, though it is a bit basic it will keep out of your way when doing pure diagrams.
http://www.gnome.org/projects/dia/
Well, I guess you mean for Windows. Otherwise for the Mac, nothing I know can beat OmniGraffle. Not only it is so easy my grandmother could use it, it can actually make really "beautiful" diagrams. It is really not too expensive (version 5 is now $99, but older ones used to be less than $40; still got a cheap one) and it can do it all, network diagrams, flow charts, UML digrams, UI mockups, etc. The app is clever, it thinks for you in a way, e.g. it will detect that you try to align objects on a line or have equal spaces between them and offer you hinted drag'n drop to make sure these criteria are met. As I said, it's really easy to work with OG.
And it can even also existing Xcode project (the standard Mac IDE for programmers) and automatically generate graphs from your source code. A complete UML chart by just pulling your Xcode project onto the icon :-) I guess it would be great if they could port that to Linux or Windows, but I'm afraid it will never happen.
Enterprise Architect (http://sparxsystems.com) is the best and very affordable.
I've used Edge Diagrammer... It does what you want simply and quickly. Supports grid placement and zooming. It's Windows-only, and it's gotten more expensive than I remember, but still cheaper than Visio.
I like Visio
If you have to use software, Visio is my favorite. (I get it for free through my school's CS program)
But... I find the best tool out there is a 17" x 11" sketchpad, sure it's made for artists but nothing beats a massive piece of paper for figuring out design problems.
The most productive diagramming, in my experience, is done on the whiteboard.
I capture in Visio, though, it has more tools and shapes than anyone else, and you can extend it to do code generation.
Sometimes I use yEd. It is a Graph Editor, but it is perfectly able to be used as a diagramming tool.
MagicDraw is quite good IMHO.
The best free solution that I'm aware of is Dia. It's marketed as a casual Visio replacement.
There's also Kivio, which I've heard good things about but haven't personally used. That one's multi-platform and free.
I use Violet UML Editor for most of my diagrams. It's not cluttered with code reverse engineering and code generation features and makes creating elegant simple diagrams very easy. Best of all it's free.
TopCased http://www.topcased.org/index.php
BOUML: http://bouml.free.fr/index.html