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Vertical (rotated) label in Android
...p.REPLACE);
super.draw(canvas);
}
}
By default, rotated text is from top to bottom. If you set android:gravity="bottom", then it's drawn from bottom to top.
Technically, it fools underlying TextView to think that it's normal rotation (swapping width/height in few places), while drawing i...
Do you have to put Task.Run in a method to make it async?
...can use TaskCompletionSource<T> or one of its shortcuts (TaskFactory.FromAsync, Task.FromResult, etc). I don't recommend wrapping an entire method in Task.Run; synchronous methods should have synchronous signatures, and it should be left up to the consumer whether it should be wrapped in a Tas...
Computational complexity of Fibonacci Sequence
...rect hypothesis is to say that T(n) <= c*2^n for some fixed c, and then from the conclusion of the inductive proof, you can infer that T(n) = O(2^n)
– amnn
Jul 3 '16 at 10:36
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How to default to other directory instead of home directory
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Just write that line to a file "cd.sh", then do this from your shell prompt:
. ./cd.sh
Or you can create an alias or function in your $HOME/.bashrc file:
foo() { cd /d/work_space_for_my_company/project/code_source ; }
If the directory name includes spaces or other shell m...
How do I edit the Visual Studio templates for new C# class/interface?
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For Visual Studio 2012, to remove these from the default class.cs file, the item template could look like this (do not include/remove using statements):
Default Class Template file:
C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\ItemTemplates\CSha...
Convert base class to derived class [duplicate]
...her options would basically come out to automate the copying of properties from the base to the derived instance, e.g. using reflection.
The code you posted using as will compile, as I'm sure you've seen, but will throw a null reference exception when you run it, because myBaseObject as DerivedClas...
How to HTML encode/escape a string? Is there a built-in?
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Thanks, this is great since it can be done from the controllers. Not that I'd do that, of course.
– Dan Rosenstark
Sep 2 '11 at 22:01
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How do I typedef a function pointer with the C++11 using syntax?
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It has a similar syntax, except you remove the identifier from the pointer:
using FunctionPtr = void (*)();
Here is an Example
If you want to "take away the uglyness", try what Xeo suggested:
#include <type_traits>
using FunctionPtr = std::add_pointer<void()>::type...
How to get the unix timestamp in C#
...mestamp:
DateTimeOffset.UtcNow.ToUnixTimeSeconds()
To get the timestamp from a DateTime:
DateTime foo = DateTime.UtcNow;
long unixTime = ((DateTimeOffset)foo).ToUnixTimeSeconds();
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impro...
fork() branches more than expected?
...However, what printf() really does is buffer its output. So the first dot from when there were only two processes does not appear when written. Those dots remain in the buffer—which is duplicated at fork(). It is not until the process is about to exit that the buffered dot appears. Four proces...