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What happens with constraints when a view is removed
...hen I do something like this, I save the constraints like this for a view called view1:
self.portraitConstraints = [NSMutableArray new];
for (NSLayoutConstraint *con in self.view.constraints) {
if (con.firstItem == self.view1 || con.secondItem == self.view1) {
[self.portraitConstraints a...
Is std::unique_ptr required to know the full definition of T?
...s. However shared_ptr and unique_ptr are partial exceptions. Some, but not all of their members can be instantiated with incomplete types. The motivation for this is to support idioms such as pimpl using smart pointers, and without risking undefined behavior.
Undefined behavior can occur when you h...
background-size in shorthand background property (CSS3)
...you have in your question or my Code example. It's just not implemented in all browsers yet.
– Kraz
Oct 23 '11 at 6:37
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Check if array is empty or null
...
As long as your selector is actually working, I see nothing wrong with your code that checks the length of the array. That should do what you want. There are a lot of ways to clean up your code to be simpler and more readable. Here's a cleaned up version...
Add a number to each selection in Sublime Text 2, incremented once per selection
...nd that I had to first select the lines and use Ctrl + Shift + L to select all affected lines, then use Text Pastry for numbering, youtube.com/watch?v=upEieoTwnjs
– Manish
Jul 4 '15 at 13:04
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How to handle multiple heterogeneous inputs with Logstash?
...gist.github.com/fairchild/3030472 Per documentation: Add a 'type' field to all events handled by this input. Types are used mainly for filter activation. The type is stored as part of the event itself, so you can also use the type to search for it in the web interface.
– Tony...
Why do you need to invoke an anonymous function on the same line?
...ition. Because it has no name (it's anonymous duh!), you won't be able to call it anymore. If you don't put semicolon then function could still be executed.
– SolutionYogi
Jul 16 '09 at 20:32
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What is a good pattern for using a Global Mutex in C#?
...id );
// Need a place to store a return value in Mutex() constructor call
bool createdNew;
// edited by Jeremy Wiebe to add example of setting up security for multi-user usage
// edited by 'Marc' to work also on localized systems (don't use just "Everyone")
var allowEveryoneRu...
Cannot pass null argument when using type hinting
...nswered Jan 29 '13 at 13:34
DonCallistoDonCallisto
26k77 gold badges6161 silver badges8484 bronze badges
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What's the best way to parse command line arguments? [closed]
... will accept -q or --query as options, store the argument in an attribute called query and has a default value if you don't specify it. It is also self-documenting in that you declare the help argument (which will be used when run with -h/--help) right there with the option.
Usually you parse your...