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How do I lowercase a string in C?

... It's in the standard library, and that's the most straight forward way I can see to implement such a function. So yes, just loop through the string and convert each character to lowercase. Something trivial like this: #include <ctype...
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C/C++ macro string concatenation

... It's more than a technicality - you can't concatenate L"a" and "b" to get L"ab", but you can concatenate L"a" and L"b" to get L"ab". – MSalters Mar 10 '11 at 8:59 ...
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How to add a progress bar to a shell script?

When scripting in bash or any other shell in *NIX, while running a command that will take more than a few seconds, a progress bar is needed. ...
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getting date format m-d-Y H:i:s.u from milliseconds

...rray[1]); echo "Date: $date:" . $date_array[0]."<br>"; Recommended and use dateTime() class from referenced: $t = microtime(true); $micro = sprintf("%06d",($t - floor($t)) * 1000000); $d = new DateTime( date('Y-m-d H:i:s.'.$micro, $t) ); print $d->format("Y-m-d H:i:s.u"); // note at po...
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How does zip(*[iter(s)]*n) work in Python?

...unction call. Therefore you're passing the same iterator 3 times to zip(), and it pulls an item from the iterator each time. x = iter([1,2,3,4,5,6,7,8,9]) print zip(x, x, x) share | improve this a...
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Rails and PostgreSQL: Role postgres does not exist

I have installed PostgreSQL on my Mac OS Lion, and am working on a rails app. I use RVM to keep everything separate from my other Rails apps. ...
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Principal component analysis in Python

...de. 13 years after its first public release, MDP has reached full maturity and no new features are planned in the future. – Gabriel Oct 5 '16 at 18:42 ...
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How to convert std::string to LPCWSTR in C++ (Unicode)

... (Found this question browsing randomly; it's been a long time since I did C++.) So the standard library doesn't have std::string -> std::wstring conversion? That seems weird; is there a good reason? – Domenic Jul 2...
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Switching from zsh to bash on OSX, and back again?

So Im learning to develop in Rails, and have discovered the power of zsh. However, for some of my other tasks, I wish to use normal Bash. Although they are the same, I just feel comfortable with the lay out of bash in some situations. How do I switch back and forth, or turn zsh on and off? Thanks! ...
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In C#, what happens when you call an extension method on a null object?

... I was referring to the difference between call and callvirt il instructions. In one edit I actually tried to href the two Opcodes pages, but the editor barfed at the links... – Marc Gravell♦ May 11 '09 at 9:48 ...