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C# 'is' operator performance

... I will guarantee that whatever you're doing, you'll have bottlenecks many orders of magnitude larger than any performance degradation the is operator is causing you, and that the over heard of designing & coding around the is operator will cost a fortune in code quality and will ultimately be s...
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Iterating through a Collection, avoiding ConcurrentModificationException when removing objects in a

...g it exposed makes it easier to do things like call .next() twice per loop etc. Not a huge problem, but can cause issues if you are doing anything more complicated than just running through a list to delete entries. – RodeoClown Oct 21 '08 at 23:58 ...
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How to configure Visual Studio to use Beyond Compare

... after the project has been setup (like via SourceTree or the command line etc...) OR edit the .git/config file (in the solution folder) and remove any overrides for the above settings. Thanks to minnow in the comments for bringing my attention to it again. Note: I keep coming across this but I ...
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CFLAGS vs CPPFLAGS

...it in CPPFLAGS, if it's for a specific language put it in CFLAGS, CXXFLAGS etc. Examples of the latter type include standard compliance or warning flags - you wouldn't want to pass -std=c99 to your C++ compiler! You might then end up with something like this in your makefile CPPFLAGS=-I/usr/includ...
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If threads share the same PID, how can they be identified?

...ad ID's are usually managed by the thread library itself (such as pthread, etc...). If the 4 threads are started they should have the same PID. The kernel itself will handle thread scheduling and such but the library is the one that is going to be managing the threads (whether they can run or not de...
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How to append text to an existing file in Java?

...her use java7 try-with-resources or put the close() in a finally block, in order to make sure that the file is closed in case of exception – Svetlin Zarev Jan 2 '14 at 10:44 1 ...
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How do I squash two non-consecutive commits?

... You can run git rebase --interactive and reorder D before B and squash D into A. Git will open an editor, and you see a file like this, ex: git rebase --interactive HEAD~4 pick aaaaaaa Commit A pick bbbbbbb Commit B pick ccccccc Commit C pick ddddddd Commit D # Reb...
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Most concise way to convert a Set to a List

...set to a list I can't perform any iterative operation on it foreach, sort, etc. I get a NullPointerException, however when I expect my list none of the elements are null, and the only weird I notice is that the index starts at 1. However, if I just create a normal list the index starts at 0. Weird? ...
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How to change line width in ggplot?

...ze_manual," this is the same procedure for picking the color, fill, alpha, etc. library(ggplot2) library(tidyr) x = seq(0,10,0.05) df <- data.frame(A = 2 * x + 10, B = x**2 - x*6, C = 30 - x**1.5, X = x) df = gather(df,A,B,C,key="Model",valu...
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What's the optimum way of storing an NSDate in NSUserDefaults?

...directly and watch it Do The Right Thing (including time zones, precision, etc). There is no formatter involved, as others have said. share | improve this answer | follow ...