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Divide a number by 3 without using *, /, +, -, % operators
...oc(number,1);
fwrite(buf,number,1,fp);
rewind(fp);
int result=fread(buf,divisor,number,fp);
printf("%d / %d = %d", number, divisor, result);
free(buf);
fclose(fp);
return 0;
}
If also the decimal part is needed, just declare result as double and add to it the result of ...
Understanding the Rails Authenticity Token
...
@Faisal, is it possible then, for an attacker to simply read/capture the 'hidden' element of the form for Service A and get that unique token generated for the user - given that they have gotten access to the session started by the user for Service A?
– marca...
Why should I use var instead of a type? [duplicate]
... developers wouldn't stop complaining about it. My defense was if they had read and understood the code it didn't make any difference.I think it actually make things easier; if you refactor code and the types change you don't have to update your references to the whatever you've refactored if it cha...
How to handle configuration in Go [closed]
...ibrary offers methods to write the data structure indented, so it is quite
readable.
See also this golang-nuts thread.
The benefits of JSON are that it is fairly simple to parse and human readable/editable
while offering semantics for lists and mappings (which can become quite handy), which
is not...
How do you represent a graph in Haskell?
...for "Haskell graph" led me to http://www.haskell.org/haskellwiki/The_Monad.Reader/Issue5/Practical_Graph_Handling, which looks like a worthwhile read.
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What is a memory fence?
...ut of order to make maximum use of the available silicon (including memory read/writes). Because the hardware enforces instructions integrity you never notice this in a single thread of execution. However for multiple threads or environments with volatile memory (memory mapped I/O for example) this ...
Show an image preview before upload
...thout actually having to upload the files. Part of the File API is the FileReader interface which lets web applications asynchronously read the contents of files .
Here's a quick example that makes use of the FileReader class to read an image as DataURL and renders a thumbnail by setting the src at...
What is a NullPointerException, and how do I fix it?
...has been part of SAP commercial JVM since 2006. The following is 2 minutes read to understand this amazing language feature.
https://jfeatures.com/blog/NullPointerException
In java 14 following is sample NullPointerException Exception message:
in thread "main" java.lang.NullPointerException: Cannot...
What's so great about Lisp? [closed]
...ns, you'll be depressed every time you use a language without them.
I've read The Little Schemer and am reading Practical Common Lisp, which are both excellent.
Next are the tools. I'm on a Mac, so I've zeroed in on Aquamacs Emacs (makes Emacs livable for a novice) and Steel Bank Common Lisp (SB...
Static files in Flask - robot.txt, sitemap.xml (mod_wsgi)
...g to do this for my production heroku. See the answers on the following thread: flask.pocoo.org/mailinglist/archive/2012/2/22/…
– David
Mar 29 '12 at 22:45
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