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Where do “pure virtual function call” crashes come from?
...sions of MSVC, replace the runtime library's purecall handler. You do this by providing your own function with this signature:
int __cdecl _purecall(void)
and linking it before you link the runtime library. This gives YOU control of what happens when a purecall is detected. Once you have control ...
How to split a string and assign it to variables
...inition for strings.Split
// Split slices s into all substrings separated by sep and returns a slice of
// the substrings between those separators.
//
// If s does not contain sep and sep is not empty, Split returns a
// slice of length 1 whose only element is s.
//
// If sep is empty, Split splits...
How can I get the current language in Django?
... Caveat: Returns None if translations are temporarily deactivated (by deactivate_all() or when None is passed to override()). Before Django 1.8, get_language() always returned LANGUAGE_CODE when translations were deactivated.
– Pieter
Jan 3 '17 at 13:11...
How do I scroll the UIScrollView when the keyboard appears?
...the UIScrollView when I'm editing an UITextField that should be hidden by the keyboard pop.
23 Answers
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Creating a UIImage from a UIColor to use as a background image for UIButton [duplicate]
...e to the UIColor object that you're trying to apply; the CGColor is backed by that UIColor, but ARC will deallocate the UIColor before you have a chance to use the CGColor.
The clearest solution is to have a local variable pointing to your UIColor with the objc_precise_lifetime attribute.
You ca...
Python pip install fails: invalid command egg_info
...version of setuptools to work, you might also have to uninstall distribute by hand or by deleting /usr/local/lib/python2.7/dist-packages/distribute-*
– Michael
Dec 26 '13 at 11:19
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Rounded UIView using CALayers - only some corners - How?
... of the corners. If you read the code, you can see how I implemented this (by deleting some of the CGContextAddArc calls, and deleting some of the radius values in the code. The code for all corners is there, so use that as a starting point and delete the parts that create corners you don't need. No...
Removing empty lines in Notepad++
... Not sure as of when, but it would seem that this plugin is installed by default now. Slightly off-topic, but one of the other incredibly useful features, under TextFX > TextFX Tools, is line sorting, optionally removing duplicates. Very handy way of doing a Unix sort -u on a Windows box wit...
Is there a command for formatting HTML in the Atom editor?
...
There are a few packages for prettifying HTML. You can find them by searching the Atom package archive:
Navigate to the Atom site
Click the Packages link
Enter "prettify" in the search box
Or just go to this link: https://atom.io/packages/search?q=prettify
Once you've selected a packa...
What does Ruby have that Python doesn't, and vice versa?
There is a lot of discussions of Python vs Ruby, and I all find them completely unhelpful, because they all turn around why feature X sucks in language Y, or that claim language Y doesn't have X, although in fact it does. I also know exactly why I prefer Python, but that's also subjective, and would...