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How to Parse Command Line Arguments in C++? [duplicate]

...ing command-line arguments in C++ if the program is specified to be run like this: 10 Answers ...
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On localhost, how do I pick a free port number?

...t figure out how to use named pipes under Windows I thought I'll use network sockets. Everything happens locally. The server is able to launch slaves in a separate process and listens on some port. The slaves do their work and submit the result to the master. How do I figure out which port is availa...
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MySQL Insert Where query

...query as it stands will fail. Assuming your id column is unique or primary key: If you're trying to insert a new row with ID 1 you should be using: INSERT INTO Users(id, weight, desiredWeight) VALUES(1, 160, 145); If you're trying to change the weight/desiredWeight values for an existing row wit...
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Is it valid to have a html form inside another html form?

...in a single document, but the FORM element can't be nested." B. The Workaround There are workarounds using JavaScript without needing to nest form tags. "How to create a nested form." (despite title this is not nested form tags, but a JavaScript workaround). Answers to this StackOverflow ques...
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How can I format a decimal to always show 2 decimal places?

...mal('3.214').quantize(TWOPLACES, context=Context(traps=[Inexact])) Traceback (most recent call last): ... Inexact: None The next question reads Q. Once I have valid two place inputs, how do I maintain that invariant throughout an application? If you need the answer to that (along with lots of ...
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Homebrew install specific version of formula?

...r more details. *(I’ve re-edited my answer to give a more thorough workflow for installing/using older software versions with homebrew. Feel free to add a note if you found the old version better.) Let’s start with the simplest case: 1) Check, whether the version is already installed (but n...
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Is there a way to run Python on Android?

We are working on an S60 version and this platform has a nice Python API.. 23 Answers ...
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MySQL case insensitive select

...? And if not, what query would I have to send so that I can do something like: 14 Answers ...
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Swift - class method which must be overridden by subclass

Is there a standard way to make a "pure virtual function" in Swift, ie. one that must be overridden by every subclass, and which, if it is not, causes a compile time error? ...
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What does 'const static' mean in C and C++?

I saw this in some code here on StackOverflow and I couldn't figure out what it does. Then I saw some confused answers on other forums. My best guess is that it's used in C to hide the constant foo from other modules. Is this correct? If so, why would anyone use it in a C++ context where you can j...