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What is the difference between exit(0) and exit(1) in C?
...tion status from a C program.
0 and EXIT_SUCCESS are the values specified by the standard to indicate successful termination, however, only EXIT_FAILURE is the standard value for returning unsucessful termination. 1 is used for the same in many implementations though.
Reference:
C99 Standar...
How do I drop table variables in SQL-Server? Should I even do this?
...e session is open, just like any other variable. They are also unaffected by transactions.
– JNK
Apr 13 '11 at 18:04
10
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How to catch integer(0)?
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Inspired by Andrie's answer, you could use identical and avoid any attribute problems by using the fact that it is the empty set of that class of object and combine it with an element of that class:
attr(a,"foo")<-"bar"
> iden...
What is the difference between 0.0.0.0, 127.0.0.1 and localhost?
... instead of 127.0.0.1:4000 . Also gem server will bind to this address by default. I can still visit it via http://localhost:port . But for Jekyll , it seems that the default setting (e.g. 0.0.0.0:4000) requires Internet access. I cannot run Jekyll server without Internet. Is it a small bug...
IBOutlet and IBAction
...ne a button and label in IB. To dynamically change the value of the label by pushing the button, you will define an action and property in your app similar to:
UILabel IBOutlet *myLabel;
- (IBAction)pushme:(id)sender;
Then in IB you would connect myLabel with the label and connect the pushme met...
Multiple levels of 'collection.defaultdict' in Python
Thanks to some great folks on SO, I discovered the possibilities offered by collections.defaultdict , notably in readability and speed. I have put them to use with success.
...
How can you check which options vim was compiled with?
...
You can see everything vim was compiled with by executing
:version
To query for an exact feature like python you can use the has() function with the feature you are looking for. The code below will return a 1 if it has the feature or 0 if it does not.
:echo has('pyt...
Google Play Services Library update and missing symbol @integer/google_play_services_version
...dule as a dependency.
As I fixed this entirely through GUI and not at all by editing any files, here's a couple of screenshots:
So my Project Structure started off looking like this...
Then I removed the google-play-services library from my dependencies list by selecting it and then clicking th...
Is it possible to decrypt MD5 hashes?
...hash function (and most of them contain more than 128 bits, or a measly 16 bytes). So there are actually an infinite number of possibilities for data that would hash to the same value. The thing that makes hashes interesting is that it is incredibly difficult to find two pieces of data that hash to ...
vertical alignment of text element in SVG
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Upvoted by mistake, and because I've made the same mistake before, I can't undo it. ☹ alignment-baseline: central does not work for SVGs in FireFox, and that seems to be by design. dominant-baseline: central works in every browser ...