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How can I create directory tree in C++/Linux?

... With C++17 or later, there's the standard header <filesystem> with function std::filesystem::create_directories which should be used in modern C++ programs. The C++ standard functions do not have the POSIX-specific explicit permissions (mode) argument, though. However, here's a C function t...
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Practical example where Tuple can be used in .Net 4.0?

... Craig StuntzCraig Stuntz 123k1212 gold badges244244 silver badges266266 bronze badges ...
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Why 0 is true but false is 1 in the shell?

... if you want to. A lot of APIs and frameworks have a similar convention - functions that succeed return 0 and and those that fail give back an error code describing the particular failure case. share | ...
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Base64 encoding and decoding in client-side Javascript

...=s.length; var A="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; for(i=0;i<64;i++){e[A.charAt(i)]=i;} for(x=0;x<L;x++){ c=e[s.charAt(x)];b=(b<<6)+c;l+=6; while(l>=8){((a=(b>>>(l-=8))&0xff)||(x<(L-2)))&&(r+=w(a));}...
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Split Strings into words with multiple word boundary delimiters

...) solution hit the nail on the head. Thanks. – JayJay123 Jul 6 '15 at 2:22 it will get you wrong answer when you don't...
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Express next function, what is it really for?

...listening on port 3000!') }); If you do curl http://localhost:3000/user/123 you will see this printed to console: before request handler handling request after request handler Now if you comment out the call to next() in the middle handler like this: app.get('/user/:id', function (req, res,...
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Does Java have something like C#'s ref and out keywords?

... Giving a detailed answer a negative vote is funny. I've checked out SO and couldn't find a fine exact answer with demo code, that's why I've written this answer as far as I can remember. If you wait for a single answer and down vote every other answer, then SO should b...
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Difference between malloc and calloc?

...s calloc to be tuned to the operating system rather than a generic library function on top of malloc. Or, an implementor could make calloc compare each word against zero before zeroing it. This would not save any time, but it would avoid dirtying the new pages. – R.. GitHub STO...
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Is there a way to make mv create the directory to be moved to if it doesn't exist?

... @Leffler, Not true -- I know bash supports more than 9 arguments (using ${123} is one method). I don't know Perl, so feel free to make an answer yourself. =] – strager Feb 13 '09 at 22:06 ...
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Singleton with Arguments in Java

...(x); return singleton; } } Then you can call Singleton.init(123) once to configure it, for example in your app startup. share | improve this answer | follow ...