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Why does .NET foreach loop throw NullRefException when collection is null?
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Well, the short answer is "because that's the way the compiler designers designed it." Realistically, though, your collection object is null, so there's no way for the compiler to get the enumerator to loop through the collection.
If you really need to do something like this, ...
Where are static methods and static variables stored in Java?
...y be allocated on the heap. This might add some information: stackoverflow.com/questions/3800444/…
– Thomas
Dec 5 '11 at 16:01
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How do you detect where two line segments intersect? [closed]
...p − q) × r
u = (p − q) × r / (s × r)
To reduce the number of computation steps, it's convenient to rewrite this as follows (remembering that s × r = − r × s):
u = (q − p) × r / (r × s)
Now there are four cases:
If r × s = 0 and (q − p) × r = 0, then t...
TSQL - How to use GO inside of a BEGIN .. END block?
...SS SQLCMD Mode Script (i.e. a master deployment script) that calls (via :r command) other SS Scripts (i.e. sub-deployment scripts) with some of those calls inside if Statements. Oded's, mellamokb's and Andy Joiner's Answers of enclosing all those Statements in exec Calls / begin-end's are non-start...
How can I convert byte size into a human-readable format in Java?
...output entails. (This also seems to be the behavior of for instance the du command in Linux.)
– aioobe
Sep 21 '10 at 14:48
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Prevent unit tests but allow integration tests in Maven
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my IDE is complaining about "cannot resolve symbol 'skipTests'" the solution was to add a line <skipTests>false</skipTests> still works with any combination of -DskipTests or -Dskip.surefire.tests as command line args seem ...
Is there a simple, elegant way to define singletons? [duplicate]
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Is there a printf converter to print in binary format?
...anded version of this macro with 16, 32, 64 bit int support: stackoverflow.com/a/25108449/432509
– ideasman42
Jun 21 '17 at 19:57
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Capture keyboardinterrupt in Python without try-except
...SystemExit exception for me. You can make it work nicely if you use it in combination with this: stackoverflow.com/a/13723190/353094
– leetNightshade
Mar 21 '15 at 19:42
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No route matches “/users/sign_out” devise rails 3
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