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Why can't variables be declared in a switch statement?
...se ANOTHER_VAL:
...
break;
}
Note that even though it is now valid from C point of view, it remains invalid from C++ point of view.
Symmetrically, in C++ case the the problem can be easily solved without the {}. Just remove the initializer from variable declaration and the code will become v...
Android emulator freezing OS X v10.9 (Mavericks) with HAXM
...* 8.1 or OS X 10.9 you should install the Hotfix.
Download of the hotfix from the HAXM download page: http://software.intel.com/en-us/articles/intel-hardware-accelerated-execution-manager/
Thanks,
Alex (Intel)
-edit-
It looks like the hotfix link has been moved (temporarily? ...). Use this lin...
How to execute PHP code from the command line?
...lot more fun.
Anyway, the php command offers two switches to execute code from the command line:
-r <code> Run PHP <code> without using script tags <?..?>
-R <code> Run PHP <code> for every input line
You can use php's -r switch as such:
php -r 'echo ...
Booleans, conditional operators and autoboxing
... of returnsNull()) to make it type boolean. This of course causes the NPE from the null returned at run-time.
For E2, types of the 2nd and 3rd operands are <special null type> (not Boolean as in E1!) and boolean respectively, so no specific typing clause applies (go read 'em!), so the final "...
makefile:4: *** missing separator. Stop
...been compiling source code of big project. Pasted some lines into makefile from tutorial, and it didn't work. Only after deleting spaces and putting Tab instead worked!
– rzaaeeff
Aug 8 '15 at 7:12
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Can someone explain the traverse function in Haskell?
I am trying and failing to grok the traverse function from Data.Traversable . I am unable to see its point. Since I come from an imperative background, can someone please explain it to me in terms of an imperative loop? Pseudo-code would be much appreciated. Thanks.
...
Using the “final” modifier whenever applicable in Java [closed]
...ticing the word itself and will simply think, that-thing-will-never-change-from-this-point-on (you can take it from me ;-)
I think it's good practice. I am not using it all the time, but when I can and it makes sense to label something final I'll do it.
...
Git add all files modified, deleted, and untracked?
...pt on a server that was running git 1.5.2.5. git add -A was not working. From the script, no error message was reported. Only from the command line did I find that -A was not a legal option to add.
– Eponymous
Jan 16 '12 at 16:37
...
NPM doesn't install module dependencies
...re node_modules folder and re-installing worked for me. Learned this trick from the IT Crowd show!
rm -rf node_modules
npm install
share
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Change column type from string to float in Pandas
...ataFrame or Series to have. It's very versatile in that you can try and go from one type to the any other.
Basic usage
Just pick a type: you can use a NumPy dtype (e.g. np.int16), some Python types (e.g. bool), or pandas-specific types (like the categorical dtype).
Call the method on the object you ...