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R cannot be resolved - Android error

...d it was breaking my build and preventing anything generated to "gen". The error wasn't actually reported except in the Console window right when I first opened the project. – Scott Persinger Mar 8 '12 at 0:56 ...
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How is a CRC32 checksum calculated?

... it is extremely difficult to find a polynomial that detects different bit errors effectively. You can think of the CRC-32 as a series of "Binary Arithmetic with No Carries", or basically "XOR and shift operations". This is technically called Polynomial Arithmetic. CRC primer, Chapter 5 To bett...
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“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP

I'm running a PHP script and continue to receive errors like: 28 Answers 28 ...
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Performance surprise with “as” and nullable types

...ypes. The JIT compiler generates a call to a CLR helper function named JIT_Unbox_Nullable to get the job done. This is a general purpose function for any value type, lots of code there to check types. And the value is copied. Hard to estimate the cost since this code is locked up inside mscorwks...
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Why do you have to link the math library in C?

If I include <stdlib.h> or <stdio.h> in a C program I don't have to link these when compiling but I do have to link to <math.h> , using -lm with gcc, for example: ...
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os.walk without digging into directories below

... Oh i was getting all sort of funny error from that one. ValueError: too many values to unpack – Setori Oct 24 '08 at 1:34 1 ...
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Deserialize JSON with C#

... are set to private or protected, the deserialization will execute without error but all data will be null. – Isaac Zais Feb 19 '15 at 17:43 2 ...
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Detecting Unsaved Changes

...chooses the cancel option, the doPostBack function will throw a JavaScript error. I had to manually put a try-catch around the .submit call within doPostBack to suppress it. On some pages, a user could perform an action that performs a postback to the same page, but isn't a save. This results in a...
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How to check if click event is already bound - JQuery

...for <a>? Because when i try it says on jQuery._data() the following error TypeError: a is undefined – Houman Sep 6 '12 at 11:37 ...
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How can I check if my python object is a number? [duplicate]

...ed and mixing somewhat compatible types usually works, yet it will barf an error message when some operation doesn't make sense (4 - "1"), so manually checking this is rarely really needed. It's just a bonus. You can add it when finishing a module to avoid pestering others with implementation detail...