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What is “rvalue reference for *this”?
...ill always pick the non-const version if it exists. You would need to do a cast to get the const version. I've updated the post to clarify.
– Nicol Bolas
Dec 23 '11 at 18:04
15
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Apply .gitignore on an existing repository already tracking large number of files
...ject in my repository. I recently added a .gitignore file under my project and I assume that tells Git to ignore the files listed in the file.
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ViewController respondsToSelector: message sent to deallocated instance (CRASH)
Ok, here is the deal, I hate putting out questions about my debugging and crashes. Because I usually handle them myself, but I just cannot get my way around this, even after viewing multiple questions already .
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Further understanding setRetainInstance(true)
...stance(true) on a Fragment ? The documentation is virtually non-existent and this seems like a very important function. Specifically I want to know how much of this sequence (that I made up) is true:
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puts vs logger in rails rake tasks
In a rake task if I use puts command then I see the output on console. However I will not see that message in log file when app is deployed on production.
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How to create a file in memory for user to download, but not through server?
Is there any way I can create a text file on the client side and prompt the user to download it, without any interaction with the server?
I know I can't write directly to their machine (security and all), but can I create and prompt them to save it?
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Easy way to dismiss keyboard?
...ve quite a few controls scattered throughout many table cells in my table, and I was wondering if there's an easier way to dismiss the keyboard without having to loop through all my controls and resigning them all as the first responder. I guess the question is.. How would I get the current first re...
How to specify the private SSH-key to use when executing shell command on Git?
... want to specify a private SSH-key to use when executing a shell (git) command from the local computer.
29 Answers
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What does the ??!??! operator do in C?
...?! is a trigraph that translates to |. So it says:
!ErrorHasOccured() || HandleError();
which, due to short circuiting, is equivalent to:
if (ErrorHasOccured())
HandleError();
Guru of the Week (deals with C++ but relevant here), where I picked this up.
Possible origin of trigraphs or as @...
problem with and :after with CSS in WebKit
...n a select box with the pseudo :after (to style my select box with 2 parts and without images). Here's the HTML:
9 Answers
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