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Move assignment operator and `if (this != &rhs)`
In the assignment operator of a class, you usually need to check if the object being assigned is the invoking object so you don't screw things up:
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How to disable/enable the sleep mode programmatically in iOS?
...back by overriding the viewWillDisappear:
override func viewWillDisappear(_ animated: Bool) {
UIApplication.shared.isIdleTimerDisabled = false
}
More about UIApplication Class.
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impr...
byte[] to hex string [duplicate]
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@Grungondola: It sounds strange that all other ways of converting bytes to a string would be so much slower. You weren't using += to concatenate the strings together, were you?
– Guffa
Nov 23 '15 at 22:29
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Send and receive messages through NSNotificationCenter in Objective-C?
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@implementation TestClass
- (void) dealloc
{
// If you don't remove yourself as an observer, the Notification Center
// will continue to try and send notification objects to the deallocated
// object.
[[NSNotificationCenter defaultCenter] removeO...
Forward declaration of nested types/classes in C++
...:Nested; // But this doesn't work.
My workaround was:
class IDontControl_Nested; // Forward reference to distinct name.
Later when I could use the full definition:
#include <idontcontrol.h>
// I defined the forward ref like this:
class IDontControl_Nested : public IDontControl::Nested
{...
How could I ignore bin and obj folders from git repository?
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it does not work when you first commit all files and then add .gitignore file to your repo and commit it. Newly ignored files are still will be shown as modified (if you rebuild, for example).
– vlad2135
Jun 23 '19 at 15:30
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Developing GUIs in Python: Tkinter vs PyQt [closed]
...es a very professional look, not comparable with a toolkit like Swing. The API is extensive and goes beyond the pure GUI things like widgets. It has support for database connectivity, printing, threading (I used it and it works like a charm),... I even use it to generate PDF's (no other external lib...
Regular Expression For Duplicate Words
...)\s+\b\1\b/
A good selection of test strings can be found here: http://callumacrae.github.com/regex-tuesday/challenge1.html
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Remove padding from columns in Bootstrap 3
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You'd normally use .row to wrap two columns, not .col-md-12 - that's a column encasing another column. Afterall, .row doesn't have the extra margins and padding that a col-md-12 would bring and also discounts the space that a column wo...
Haskell Type vs Data Constructor
...erstanding type constructors and data constructors. For example, I don't really understand the difference between this:
6 A...