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Why main does not return 0 here?

...the C standard. In C90, the status returned is undefined. You can enable it by passing -std=c99 to gcc. As a side note, interestingly 9 is returned because it's the return of printf which just wrote 9 characters. share ...
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Find out if string ends with another string in C++

How can I find out if a string ends with another string in C++? 20 Answers 20 ...
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Create a folder if it doesn't already exist

I've run into a few cases with WordPress installs with Bluehost where I've encountered errors with my WordPress theme because the uploads folder wp-content/uploads was not present. ...
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How do I create a Java string from the contents of a file?

I've been using the idiom below for some time now. And it seems to be the most wide-spread, at least on the sites I've visited. ...
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iOS: Modal ViewController with transparent background

I'm trying to present a view controller modally, with a transparent background. My goal is to let both the presenting and presented view controllers's view to be displayed at the same time. The problem is, when the presenting animation finishes, the presenting view controller's view disappears. ...
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How do you find out the caller function in JavaScript?

... This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future. The following is the old answer from 200...
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Type safety: Unchecked cast

... Well, first of all, you're wasting memory with the new HashMap creation call. Your second line completely disregards the reference to this created hashmap, making it then available to the garbage collector. So, don't do that, use: private Map<String, String> so...
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What are the differences between NP, NP-Complete and NP-Hard?

... I assume that you are looking for intuitive definitions, since the technical definitions require quite some time to understand. First of all, let's remember a preliminary needed concept to understand those definitions. Decision problem: A problem with a yes or ...
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WebSockets protocol vs HTTP

...y blogs and discussions about websocket and HTTP, and many developers and sites strongly advocate websockets, but i still can not understand why. ...
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The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communicat

What is this error all about, and how would I go about solving it? 14 Answers 14 ...