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Is std::vector so much slower than plain arrays?
...ds
UseVector completed in 4.412 seconds
UseVectorPushBack completed in 8.017 seconds
The whole thing completed in 14.626 seconds
So array is twice as quick as vector.
But after looking at the code in more detail this is expected; as you run across the vector twice and the array only once...
Change UICollectionViewCell size on different device orientations
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followbenfollowben
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How to get the last N rows of a pandas DataFrame?
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Don't forget DataFrame.tail! e.g. df1.tail(10)
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How to get the index of a maximum element in a numpy array along one axis
...iroeumiro
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Change a column type from Date to DateTime during ROR migration
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answered Mar 4 '11 at 8:42
apneadivingapneadiving
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Is MATLAB OOP slow or am I doing something wrong?
... 0.02261 sec 0.23 usec per call
nop1-5() functions: 0.02182 sec 0.22 usec per call
nop() subfunction: 0.02244 sec 0.22 usec per call
@()[] anonymous function: 0.08461 sec 0.85 usec per call
nop(obj) method: 0.24664 sec 2.47 usec per call
no...
How to change column datatype from character to numeric in PostgreSQL 8.4
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edited Apr 25 '16 at 18:14
answered Oct 7 '11 at 5:33
m...
Ask for User Permission to Receive UILocalNotifications in iOS 8
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Since iOS 8 you need to ask user's permission to show notifications from your app, this applies for both remote/push and local notifications. In Swift you can do it like this,
Update for Swift 2.0
func application(application: UIAppl...
undefined method `source_index' for Gem:Module (NoMethodError)
... this problem myself while trying to upgrade an older Rails app from REE 1.8.7 to 1.9.3-p385. Oddly, Ruby 1.9.3-p327 works just fine. What it came down to was ruby-1.9.3-p385 had installed RubyGems version 2.0.2 for me, and 1.9.3-p327 has RubyGems v1.8.23 installed.
Gem.source_index has been deprec...