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PHP array_filter with arguments
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As an alternative to @Charles's solution using closures, you can actually find an example in the comments on the documentation page. The idea is that you create an object with the desired state ($num) and the callback method (taking $i as an argument):
class LowerThanFilter {
private ...
Why does struct alignment depend on whether a field type is primitive or user-defined?
... The documentation of StructLayoutAttribute is pretty interesting. Basically, only blittable types are controlled through StructLayout in managed memory. Interesting, never knew that.
– Michael Stum♦
Jul 15 '14 at 7:01
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Why the switch statement cannot be applied on strings?
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The reason why has to do with the type system. C/C++ doesn't really support strings as a type. It does support the idea of a constant char array but it doesn't really fully understand the notion of a string.
In order to generate the code for a switch statement the compiler must under...
Understanding Apache's access log
...the client IP)
%l is the identity of the user determined by identd (not usually used since not reliable)
%u is the user name determined by HTTP authentication
%t is the time the request was received.
%r is the request line from the client. ("GET / HTTP/1.0")
%>s is the status code sent from the s...
Difference between using bean id and name in Spring configuration file
...ference, 3.2.3.1 Naming Beans:
Every bean has one or more ids (also
called identifiers, or names; these
terms refer to the same thing). These
ids must be unique within the
container the bean is hosted in. A
bean will almost always have only one
id, but if a bean has more than one
i...
How to change credentials for SVN repository in Eclipse?
I have Eclipse 3.4.2 installed on Windows with subclipse. Another developer added an SVN repository with his credentials and selected 'Save password'. Now every time I do anything with SVN his cached credentials are used. How can I change them to mine?
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Pandoc markdown page break
...nd the Lua filter below to get page breaks in many formats.
Pandoc parses all inputs into an internal document format. That format has no dedicated way to represent page breaks, but it is still possible to encode the information in other ways. One way is to use raw LaTeX \newpage. This works perfec...
What's the simplest way to list conflicted files in Git?
...ff --check uses the whitespace rules from core.whitespace. You can disable all of the whitespace checks during git invocation to just get conflict markers: git -c core.whitespace=-trailing-space,-space-before-tab,-indent-with-non-tab,-tab-in-indent,-cr-at-eol diff --check
– Jos...
Find which version of package is installed with pip
..., is it possible to figure out which version of a package is currently installed?
15 Answers
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Signing a Windows EXE file
I have an EXE file that I should like to sign so that Windows will not warn the end user about an application from an "unknown publisher". I am not a Windows developer. The application in question is a screensaver generated from an application that generates screensaver applications. As such I hav...