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Find XOR of all numbers in a given range
... 4 (starting at a multiple of 4), all the bits except the lowest are the same, so they alternate between canceling each other or having their original value. It's true that the lowest bit cycles every 2, but 0^1 == 1 (i.e. they don't cancel). The reason the lowest two is special is because (00 ^ 01 ...
When writing a directive in AngularJS, how do I decide if I need no new scope, a new child scope, or
I'm looking for some guidelines that one can use to help determine which type of scope to use when writing a new directive. Ideally, I'd like something similar to a flowchart that walks me through a bunch of questions and out pops the correct answer – no new new scope, new child scope, or new isol...
How to get the unique ID of an object which overrides hashCode()?
...t as an integer. Uniqueness isn't necessarily guaranteed. The Sun JVM implementation will give you a value which is related to the original memory address for this object, but that's an implementation detail and you shouldn't rely on it.
EDIT: Answer modified following Tom's comment below re. memor...
Is it possible to preview stash contents in git?
I often put work away for later, then other stuff comes along, and a few weeks later, I want to inspect the stash, and find out what changes it would make if I applied it to working tree in its current state.
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Altering a column: null to not null
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Let me value-add to the above two correct responses. The semantics of NULL can have a few meanings. One of the common meaning is UNKNOWN. Take SCORE as an example. A null SCORE and a ZERO SCORE is a world of difference! Before yo...
Qt: can't find -lGL error
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You should install package "libgl1-mesa-dev":
sudo apt install libgl1-mesa-dev
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Install a Windows service using a Windows command prompt?
...lutil.exe in your .net folder (for .net 4 it's C:\Windows\Microsoft.NET\Framework\v4.0.30319 for example) and use it to install your service, like this:
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe" "c:\myservice.exe"
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How to change the timeout on a .NET WebClient object
...ogramatically) and their webserver is very, very slow which is causing a timeout in my WebClient object.
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Replacing a fragment with another fragment inside activity group
I have a fragment inside a group activity and I want to replace it with another fragment:
12 Answers
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The name 'model' does not exist in current context in MVC3
...hen I tried to add the following declaration to it, I get an error: "The name 'model' does not exist in current context".
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