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What happens to global and static variables in a shared library when it is dynamically linked?

...yntax similar to the function export/import syntax, i.e.: #ifdef COMPILING_THE_DLL #define MY_DLL_EXPORT extern "C" __declspec(dllexport) #else #define MY_DLL_EXPORT extern "C" __declspec(dllimport) #endif MY_DLL_EXPORT int my_global; When you do that, the global variable is added to the list of...
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Match multiple cases classes in scala

... matcher(l: Foo): String = { l match { case A() => "A" case B(_) | C(_) => "B" case _ => "default" } } If you must, must, must extract the parameter and treat them in the same code block, you could: def matcher(l: Foo): String = { l match { case A() => "A" ca...
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How can I use PowerShell with the Visual Studio Command Prompt?

...t Visual Studio 10.0\VC' cmd /c "vcvarsall.bat&set" | foreach { if ($_ -match "=") { $v = $_.split("="); set-item -force -path "ENV:\$($v[0])" -value "$($v[1])" } } popd write-host "`nVisual Studio 2010 Command Prompt variables set." -ForegroundColor Yellow This has worked well for ye...
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What is the difference between AF_INET and PF_INET in socket programming?

What is the difference between AF_INET and PF_INET in socket programming? 7 Answers 7 ...
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how to check if a file is a directory or regular file in python? [duplicate]

... pathname = os.path.join(top, f) mode = os.stat(pathname)[ST_MODE] if S_ISDIR(mode): # It's a directory, recurse into it walktree(pathname, callback) elif S_ISREG(mode): # It's a file, call the callback function callback(...
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Is there a math nCr function in python? [duplicate]

... def nCr(n,r): f = math.factorial return f(n) / f(r) / f(n-r) if __name__ == '__main__': print nCr(4,2) In Python 3, use the integer division // instead of / to avoid overflows: return f(n) // f(r) // f(n-r) Output 6 ...
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Very Long If Statement in Python [duplicate]

...to your code block. For example: if (abcdefghijklmnopqrstuvwxyz > some_other_long_identifier and here_is_another_long_identifier != and_finally_another_long_name): # ... your code here ... pass share ...
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Comparing two branches in Git? [duplicate]

I have two branches, branch_1 and branch_2 . 1 Answer 1 ...
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When and why should I use a namedtuple instead of a dictionary? [duplicate]

... to create a bunch of instances of a class like: class Container: def __init__(self, name, date, foo, bar): self.name = name self.date = date self.foo = foo self.bar = bar mycontainer = Container(name, date, foo, bar) and not change the attributes after you se...
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Node.js, can't open files. Error: ENOENT, stat './path/to/file'

...eing called from. To make a path relative to the script, you must use the __dirname variable. var path = require('path'); path.join(__dirname, 'path/to/file') or potentially path.join(__dirname, 'path', 'to', 'file') ...