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How can I create directory tree in C++/Linux?
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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...
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.
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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.
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Does Java have something like C#'s ref and out keywords?
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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...
How do I enter RGB values into Interface Builder?
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I used a Wacom Bamboo Fun writing tablet to write on the screenshot in Photoshop (Gimp works just as well for this). Took the screenshot with command-shift-4, then space and clicked on the window.
– Tyler
Ap...
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...
What are the differences between “=” and “
...perator but rather a syntax token that signals named argument passing in a function call. Unlike the = operator it performs no action at runtime, it merely changes the way an expression is parsed.
Let’s see.
In any piece of code of the general form …
‹function_name›(‹argname› = ‹v...
Angular.js directive dynamic templateURL
...d attrs from a templateUrl function. THANKS!
– coryvb123
Jun 18 '14 at 20:05
7
templateUrl is cal...
What is the difference between allprojects and subprojects
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In a multi-project gradle build, you have a rootProject and the subprojects. The combination o...