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What happens to a declared, uninitialized variable in C? Does it have a value?
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Static variables (file scope and function static) are initialized to zero:
int x; // zero
int y = 0; // also zero
void foo() {
static int x; // also zero
}
Non-static variables (local variables) are indeterminate. Reading them prio...
How do I daemonize an arbitrary script in unix?
I'd like a daemonizer that can turn an arbitrary, generic script or command into a daemon .
12 Answers
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Bash Templating: How to build configuration files from templates with Bash?
...t to automate creating configuration files for Apache and PHP for my own webserver. I don't want to use any GUIs like CPanel or ISPConfig.
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How to avoid “too many parameters” problem in API design?
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One style embraced in the frameworks is usually like grouping related parameters into related classes (but yet again problematic with mutability):
var request = new HttpWebRequest(a, b);
var service = new RestService(request, c, d, e);
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What is SELF JOIN and when would you use it? [duplicate]
... don't understand self joins so a layman explanation with an example would be great.
5 Answers
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What is the difference between CMD and ENTRYPOINT in a Dockerfile?
...es there are two commands that look similar to me: CMD and ENTRYPOINT . But I guess that there is a (subtle?) difference between them - otherwise it would not make any sense to have two commands for the very same thing.
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Using ECMAScript 6
I'm looking for a way to run ECMAScript 6 code in my browser's console but most browsers don't support functionality that I'm looking for. For example Firefox is the only browser that supports arrow functions.
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Xcode 6 iPhone Simulator Application Support location
In Xcode 6, I have an app I'm using Core Data in, but there is no folder in Application Support for the iOS 8 iPhone Simulator. Where are my files and Core Data sqlite database being stored?
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Code Golf - π day
...88 and 93 93 94 96 102 105 129 138 141 chars
Just in case, I am using OpenBSD and some supposedly non-portable extensions at this point.
93 chars. This is based on same formula as FORTRAN solution (slightly different results than test cases). Calculates X^2=R^2-Y^2 for every Y
[rdPr1-d0<p]sp1?...
How to make a great R reproducible example
When discussing performance with colleagues, teaching, sending a bug report or searching for guidance on mailing lists and here on Stack Overflow, a reproducible example is often asked and always helpful.
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