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Is it safe to use -1 to set all bits to true?

...times have surprising behavior because you will have to have the right operand type. Only then you will get the most high value of an unsigned type. For an example of a possible surprise, consider this one: unsigned long a = ~0u; It won't necessarily store a pattern with all bits 1 into a. But ...
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Using property() on classmethods

...lass with two class methods (using the classmethod() function) for getting and setting what is essentially a static variable. I tried to use the property() function with these, but it results in an error. I was able to reproduce the error with the following in the interpreter: ...
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How do I prompt for Yes/No/Cancel input in a Linux shell script?

I want to pause input in a shell script, and prompt the user for choices. The standard Yes , No , or Cancel type question. How do I accomplish this in a typical bash prompt? ...
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How to fix Git error: object file is empty?

...Continue deleting the empty files. You can also cd into the .git directory and run find . -type f -empty -delete -print to remove all empty files. Eventually git started telling me it was actually doing something with the object directories: nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git ...
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Are NSLayoutConstraints animatable? [duplicate]

...o animate up some views so that they are blocked by the giant keyboard in landscape. It works well if I simply animate the frames, but others have suggested that this is counter-productive and I should be updating the NSLayoutConstraints instead. However, they don't seem to be animatable. Has any...
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Get exception description and stack trace which caused an exception, all as a string

I've seen a lot of posts about stack trace and exceptions in Python. But haven't found what I need. 11 Answers ...
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How do synchronized static methods work in Java and can I use it for loading Hibernate entities?

...ynchronized on a static method lock you will synchronize the class methods and attributes ( as opposed to instance methods and attributes ) So your assumption is correct. I am wondering if making the method synchronized is the right approach to ensure thread-safety. Not really. You should let your...
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Resolve Git merge conflicts in favor of their changes during a pull

... do this, I end up back in the MERGING state. I can then git merge --abort and try again, but each time I end up with a merge occurring. … I know that a rebase was pushed to my upstream though, so perhaps that's causing this? – Benjohn Jul 14 '16 at 9:03 ...
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Replace string within file contents

How can I open a file, Stud.txt, and then replace any occurences of "A" with "Orange"? 8 Answers ...
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CKEditor instance already exists

...rst one was not displaying but the other two where, I added the above code and all teh editors now appear – Craig Angus Apr 29 '10 at 15:56 18 ...