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C++ equivalent of Java's toString?
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In C++ you can overload operator<< for ostream and your custom class:
class A {
public:
int i;
};
std::ostream& operator<<(std::ostream &strm, const A &a) {
return strm << "A(" << a.i << ")";
}
This way you can output instances ...
Is the list of Python reserved words and builtins available in a library?
Is the list of Python reserved words and builtins available in a library? I want to do something like:
1 Answer
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Should we @Override an interface's method implementation?
...bject obj).
The same will go for methods that implement an interface (1.6 and above only) or override a Super class's method.
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How do I view the type of a scala expression in IntelliJ
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Select expression and type Alt + =.
If you want to change the shortcut go to Preferences > Keymap and enter "Type Info" in the search field.
In older versions, it's Shift + Ctrl + Alt + T.
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How do I export UIImage array as a movie?
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Take a look at AVAssetWriter and the rest of the AVFoundation framework. The writer has an input of type AVAssetWriterInput, which in turn has a method called appendSampleBuffer: that lets you add individual frames to a video stream. Essentially you’ll...
Number of occurrences of a character in a string [duplicate]
...dibly expensive, if the string is large. Worst case if the string is large and (almost) entirely made up of repeated delimiters (&), it could allocate 12-24x the original size of the string due to object overheads in .Net. I would go with the second approach, and if that's not fast enough then w...
How to persist a property of type List in JPA?
... My mistake was to add @ OneToMany annotation as well... after removing it and just leaving @ ElementCollection it worked
– Willi Mentzel
Jun 13 '17 at 13:41
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Truncate Two decimal places without rounding
Lets say I have a value of 3.4679 and want 3.46, how can I truncate to two decimal places that without rounding up?
21 Answ...
CSS to line break before/after a particular `inline-block` item
... is a good way to do what you want to do. Anything you insert using :after and content has exactly the same syntactic and semantic validity it would have done if you had just written it in there yourself.
The tools CSS provide work. You should just float the lis and then clear: left when you want t...
How to change a command line argument in Bash?
Is there a way to change the command line arguments in a Bash script. Say for example, a Bash script is invoked the following way:
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