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Is “argv[0] = name-of-executable” an accepted standard or just a common convention?

When passing argument to main() in a C or C++ application, will argv[0] always be the name of the executable? Or is this just a common convention and not guaranteed to be true 100% of the time? ...
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Objective-C: Where to remove observer for NSNotification?

I have an objective C class. In it, I created a init method and set up a NSNotification in it 14 Answers ...
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What is recursion and when should I use it?

One of the topics that seems to come up regularly on mailing lists and online discussions is the merits (or lack thereof) of doing a Computer Science Degree. An argument that seems to come up time and again for the negative party is that they have been coding for some number of years and they have n...
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How to write a large buffer into a binary file in C++, fast?

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How do I remove blank elements from an array?

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Should I use int or Int32

In C#, int and Int32 are the same thing, but I've read a number of times that int is preferred over Int32 with no reason given. Is there a reason, and should I care? ...
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What is thread contention?

Can someone please explain simply what thread contention is? 10 Answers 10 ...
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How to check if a string in Python is in ASCII?

I want to I check whether a string is in ASCII or not. 16 Answers 16 ...
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How to correct TypeError: Unicode-objects must be encoded before hashing?

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Make xargs execute the command once for each line of input

How can I make xargs execute the command exactly once for each line of input given? It's default behavior is to chunk the lines and execute the command once, passing multiple lines to each instance. ...