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What's the absurd function in Data.Void useful for?
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Exploitable PHP functions
...e to have a grep -able list of red-flag keywords handy when searching a compromised server for back-doors.
23 Answers
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“To Do” list before publishing Android app to market [closed]
... of the week (Thursday afternoon is usually a good time). Why so? Well, no companies would like to publish an app only 1.5 day before the week end -> too dangerous (in case there is a problem that needs a quick reaction time).
Use proguard on your app (usually, you just have to add this line: pro...
Why does C++ require a user-provided default constructor to default-construct a const object?
...user-provided" not "user-declared" and I'm left scratching my head why the committee chose to exclude explicitly-defaulted default constructors from this DR, forcing us to make our classes non-trivial if we want const objects with uninitialized members.
– Oktalist
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Merge, update, and pull Git branches without using checkouts
...feature checked out:
git fetch upstream master:master
This use-case is so common, that you'll probably want to make an alias for it in your git configuration file, like this one:
[alias]
sync = !sh -c 'git checkout --quiet HEAD; git fetch upstream master:master; git checkout --quiet -'
What th...
How do I modify fields inside the new PostgreSQL JSON datatype?
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$BODY$
LANGUAGE sql IMMUTABLE STRICT
COST 100;
Update: functions are compacted now.
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What does the CSS rule “clear: both” do?
...ader, 1 side bar, 1 content area and 1 footer.
No floats for header, next comes the aside tag which I'll be using for my website sidebar, so I'll be floating the element to left.
Note: By default, block level element takes up document 100% width,
but when floated left or right, it will resize...
Understanding checked vs unchecked exceptions in Java
...ing throwing Exception, it isn't always because people are lazy, it's also common that you, when you implement frameworks, let users of the framework be able to throw any exception. You can e.g. check the signature of the Callable interface in JSE
– Kaj
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Change column type from string to float in Pandas
...y what you want, but what if you wanted to save some memory and use a more compact dtype, like float32, or int8?
to_numeric() gives you the option to downcast to either 'integer', 'signed', 'unsigned', 'float'. Here's an example for a simple series s of integer type:
>>> s = pd.Series([1, 2...
How do I safely pass objects, especially STL objects, to and from a DLL?
...l those hoops, nor is there a guarantee that a solution which works in one compiler release will work in the next.
Just create a plain C interface using extern "C", since the C ABI is well-defined and stable.
If you really, really want to pass C++ objects across a DLL boundary, it's technically ...