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Downcasting shared_ptr to shared_ptr?
...t". This will result in undefined behavior (a Derived* pointing at memory allocated for and initialized by Base) and will likely cause a crash, or worse. The reference count on base will be incremented.
The dynamic_pointer_cast will result in a null pointer. The reference count on base will be u...
Uses for Optional
...tween wanting to use it everywhere something may be null , and nowhere at all.
14 Answers
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Difference between SurfaceView and View?
...
Views are all drawn on the same GUI thread which is also used for all user interaction.
So if you need to update GUI rapidly or if the rendering takes too much time and affects user experience then use SurfaceView.
...
Remove carriage return in Unix
What is the simplest way to remove all the carriage returns \r from a file in Unix?
20 Answers
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Check if event is triggered by a human
...way to do this would be to pass in an additional parameter on the trigger call as per the documentation.
$('.checkbox').change(function(e, isTriggered){
if (!isTriggered)
{
alert ('human');
}
});
$('.checkbox').trigger('change', [true]); //doesn't alert
Example: http://jsfiddle.net/wG2...
When to use MyISAM and InnoDB? [duplicate]
... -- Mostly no longer true.
Full-text indexing. -- InnoDB has it now
Especially good for read-intensive (select) tables. -- Mostly no longer true.
Disk footprint is 2x-3x less than InnoDB's. -- As of Version 5.7, this is perhaps the only real advantage of MyISAM.
InnoDB:
The InnoDB storage engi...
Seeking clarification on apparent contradictions regarding weakly typed languages
...xamples of programming languages that simply coerce/convert types automatically.
9 Answers
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Is there any simple way to find out unused strings in Android project?
...le "Find usages" doesn't show any usage of them (and it does for those actually used).
– user905686
Aug 28 '17 at 8:27
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Drawing Isometric game worlds
...loop with fairly straight forward logic that works consistently throughout all tiles.
Disadvantage:
One downside to that approach is that the x and y coordinates of the tiles on the map will increase in diagonal lines, which might make it more difficult to visually map the location on the screen t...
Switch statement: must default be the last case?
...
The C99 standard is not explicit about this, but taking all facts together, it is perfectly valid.
A case and default label are equivalent to a goto label. See 6.8.1 Labeled statements. Especially interesting is 6.8.1.4, which enables the already mentioned Duff's Device:
Any ...