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How to prompt for user input and read command-line arguments [closed]
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In Python 2.7, input() doesn't convert values to strings. So if you try to do this: input_variable1 = input ("Enter the first word or phrase: "), you will get an error: Traceback (most recent call last): return eval(raw_input(prompt)) File "<st...
Node.js vs .Net performance
...n other platforms, but on Windows IIS is the winner. Developers looking to convert their ASP.NET MVC to nodejs should pause and think twice before proceeding.
Updated (5/17/2012)
Tomcat (on windows) seems to beat IIS hands down, about 3 times faster than IIS in dishing out static html.
tomcat
ind...
How do I compare strings in Java?
...th the safe navigation operator (groovy.codehaus.org/…), ?.. That would convert nullString1?.equals(nullString2); into an entirely null statement. However, it doesn't help if you have validString?.equals(nullString); -- that still throws an exception.
– Charles Wood
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Scala: List[Future] to Future[List] disregarding failed futures
I'm looking for a way to convert an arbitrary length list of Futures to a Future of List. I'm using Playframework, so ultimately, what I really want is a Future[Result] , but to make things simpler, let's just say Future[List[Int]] The normal way to do this would be to use Future.sequence(...) ...
Where can I get a “useful” C++ binary search algorithm?
... T and the type after ForwardIt is dereferenced
// must be implicitly convertible to BOTH Type1 and Type2, used in Compare.
// This is stricter than lower_bound requirement (see above)
first = std::lower_bound(first, last, value, comp);
return first != last && !comp(value,...
Android: Is it possible to display video thumbnails?
...this will work.
int id = **"The Video's ID"**
ImageView iv = (ImageView ) convertView.findViewById(R.id.imagePreview);
ContentResolver crThumb = getContentResolver();
BitmapFactory.Options options=new BitmapFactory.Options();
options.inSampleSize = 1;
Bitmap curThumb = MediaStore.Video.Thumbnails.g...
Where does Scala look for implicits?
...Int) = new A(n)
}
// This becomes possible:
1 + new A(1)
// because it is converted into this:
A.fromInt(1) + new A(1)
This is available since Scala 2.9.1.
Implicit Scope of Type Arguments
This is required to make the type class pattern really work. Consider Ordering, for instance: It comes wit...
Covariance and contravariance real world example
...) // "Melman"
};
PrintLifeForms(myGiraffes); // Compile Error!
cannot convert from 'System.Collections.Generic.List<Giraffe>' to 'System.Collections.Generic.IList<LifeForm>'
Why? Because the generic parameter IList<LifeForm> is not covariant -
IList<T> is invariant, s...
Determine a string's encoding in C#
...ou are reading the contents of a file, which is made of bytes, and wish to convert that to a string, then the file's encoding must be used.
.NET includes encoding and decoding classes for: ASCII, UTF7, UTF8, UTF32 and more.
Most of these encodings contain certain byte-order marks that can be used ...
Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
... printf ("\r\n");
}
printf ("\r\nNumber of 32-byte chunks to convert: %d\r\n",(unsigned int)ceil(NUM_DATA_BYTES/32.0));
double start_time = omp_get_wtime();
bitflipbyte(data,(unsigned int)ceil(NUM_DATA_BYTES/32.0),k1);
double end_time = omp_get_wtime();
printf ("\r\nD...