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Is there any performance reason to declare method parameters final in Java?
...e type, such as int, and inline them directly in the code just like with a C++ macro.
However, i have no clue if this is done in practice, but it could be done in order to save some memory.
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How to check if a file is empty in Bash?
... the shell cannot help you when you misspell, whereas a compiler like your C++ compiler can help you.
Notice incidentally that I have swapped the roles of empty.txt and full.txt, as @Matthias suggests.
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How to map atan2() to degrees 0-360
...(theta_rad/M_PI*180) + (theta_rad > 0 ? 0 : 360);
This should work in C++: (depending on how fmod is implemented, it may be faster or slower than the conditional expression)
theta_deg = fmod(atan2(y,x)/M_PI*180,360);
Alternatively you could do this:
theta_deg = atan2(-y,-x)/M_PI*180 + 180;
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Why is there no Tree class in .NET?
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@Veverke Perhaps you were thinking of C++ templates. .NET generics are runtime types.
– Tom Blodget
Sep 29 '16 at 12:46
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Deleting an object in java?
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Your C++ is showing.
There is no delete in java, and all objects are created on the heap. The JVM has a garbage collector that relies on reference counts.
Once there are no more references to an object, it becomes available for ...
“f” after number
...ter that this is a floating point number (I assume you are talking about c/c++ here). If there is no f after the number, it is considered a double or an integer (depending on if there is a decimal or not).
3.0f -> float
3.0 -> double
3 -> integer
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Using the “start” command with parameters passed to the started program
...lt;parameters>
I'm not sure this actually waits for completion... the C++ Redistributable I was installing went fast enough that it didn't matter
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C++11 features in Visual Studio 2012
...It's worth noting that Visual Studio 2010 already had quite a bit of early C++11 support. So to summarize what is already linked to in other answers, here is what is new in Visual Studio 11 that was not part of Visual Studio 2010:
rvalue references to version 2.1 from 2.0
lambdas to version 1.1 fr...
What does the “===” operator do in Ruby? [duplicate]
...o perform whatever the heck you want (analogous to operator overloading in C++).
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How to get english language word database? [closed]
...peful that these broader lists would contain words with punctuation, like "C++" or "C#", but couldn't find any. So if that's what you're after you can short-circuit you can skip this one (and the narrower lists in other answers).
– hobs
Apr 27 '16 at 18:53
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