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What's an object file in C?

I am reading about libraries in C but I have not yet found an explanation on what an object file is. What's the real difference between any other compiled file and an object file? I would be glad if someone could explain in human language. ...
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How add “or” in switch statements?

This is what I want to do: 5 Answers 5 ...
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What is the difference between NaN and None?

I am reading two columns of a csv file using pandas readcsv() and then assigning the values to a dictionary. The columns contain strings of numbers and letters. Occasionally there are cases where a cell is empty. In my opinion, the value read to that dictionary entry should be None but instead ...
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Is there a CSS not equals selector?

Is there something like != (not equal) in CSS? e.g, I have the following code: 6 Answers ...
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Cannot use ref or out parameter in lambda expressions

Why can't you use a ref or out parameter in a lambda expression? 5 Answers 5 ...
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How do I cast a variable in Scala?

Given a variable with type Graphics , how do I cast it to Graphics2D in Scala? 2 Answers ...
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css - position div to bottom of containing div

How can i position a div to the bottom of the containing div? 3 Answers 3 ...
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Why is whitespace sometimes needed around metacharacters?

A few months ago I tattooed a fork bomb on my arm, and I skipped the whitespaces, because I think it looks nicer without them. But to my dismay, sometimes (not always) when I run it in a shell it doesn't start a fork bomb, but it just gives a syntax error. ...
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AJAX post error : Refused to set unsafe header “Connection”

I have the following custom ajax function that posts data back to a PHP file. Everytime the post of data happens I get the following two errors : ...
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What does the “@” symbol do in Powershell?

I've seen the @ symbol used in PowerShell to initialise arrays. What exactly does the @ symbol denote and where can I read more about it? ...