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Generating random integer from a range
I need a function which would generate a random integer in given range (including border values). I don't unreasonable quality/randomness requirements, I have four requirements:
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Position: absolute and parent height?
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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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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...
How to change the name of a Django app?
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Fun problem! I'm going to have to rename a lot of apps soon, so I did a dry run.
This method allows progress to be made in atomic steps, to minimise disruption for other developers working on the app you're renaming.
See th...
What is the theoretical maximum number of open TCP connections that a modern Linux box can have
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C10k is 10 years old and no longer fun. [Read this] to see how C1024K can be tackled.
– Chandranshu
Nov 11 '13 at 19:11
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