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Best way to parse command-line parameters? [closed]
...alue)
Non-string types of options and properties values (with extendable converters)
Powerful matching on trailing args
Subcommands
And some example code (also from that Github page):
import org.rogach.scallop._;
object Conf extends ScallopConf(List("-c","3","-E","fruit=apple","7.2")) {...
What's the difference between “static” and “static inline” function?
... put to perform the call. inline will essentially instruct the compiler to convert the code above into an equivalent of:
int i;
....
for (i=0; i<999999; i = i+1) { /* do something here */};
Skipping the actual function call and return
Obviously this is an example to show the point, not a r...
Optional Parameters with C++ Macros
...
You could get a clear compilation error if you converted the selected argument which is supposed to be a MACRO name to string using # (the pound sign) and compared it's first n characters with the expected prefix and if there is no match, printed an informative error.
...
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(...) ...
How do I print to the debug output window in a Win32 app?
...fer
swprintf(text_buffer, _countof(text_buffer), L"%d", your.variable); // convert
OutputDebugString(text_buffer); // print
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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...
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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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...
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...
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,...