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Default value of function parameter

...le, and the definition in a separate .cpp file, and #include the header from a different .cpp file, you will be able to see the difference. Specifically, suppose: lib.h int Add(int a, int b); lib.cpp int Add(int a, int b = 3) { ... } test.cpp #include "lib.h" int main() { Add(4); } ...
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How do I add a tool tip to a span element?

In the following code, I want a tool-tip to come up when the user hovers the span, how do I do that? I don't want to use any links. ...
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Could not insert new outlet connection [duplicate]

Could not insert new outlet connection: Could not find any information for the class and not showing any class named "ViewController" ...
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What is Android keystore file, and what is it used for?

This is a general question, but particularly I am interested in it's use for Android. What is a keystore file, and what is it used for? ...
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How to undo 'git reset'?

What's the simplest way to undo the 4 Answers 4 ...
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Is there a benefit to defining a class inside another class in Python?

What I'm talking about here are nested classes. Essentially, I have two classes that I'm modeling. A DownloadManager class and a DownloadThread class. The obvious OOP concept here is composition. However, composition doesn't necessarily mean nesting, right? ...
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Replace selector images programmatically

I have an ImageView that has a drawable image resource set to a selector. How do I programmatically access the selector and change the images of the highlighted and non-highlighted state? ...
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What does “mro()” do?

...Follow along...: >>> class A(object): pass ... >>> A.__mro__ (<class '__main__.A'>, <type 'object'>) >>> class B(A): pass ... >>> B.__mro__ (<class '__main__.B'>, <class '__main__.A'>, <type 'object'>) >>> class C(A): pass...
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Can Eclipse refresh resources automatically?

... resources (files that have been edited outside of the IDE) differently from other IDEs that I've used, where only resources with editors open are considered out-of-sync. In Eclipse, any resource can go out of sync. ...
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Distinct not working with LINQ to Objects

This is based on an example in "LINQ in Action". Listing 4.16. 9 Answers 9 ...