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Abstract methods in Python [duplicate]
...to reach method implementations in an ABC, not that you need to use abc in order to use super(). super() works with any new-style class.
– kindall
Sep 20 '17 at 18:41
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Line continuation for list comprehensions or generator expressions in python
...space follows it). I think it's much better to use it than not, though, in order to keep your line lengths down.
Since \ isn't necessary in the above case, or for parenthesized expressions, I actually find it fairly rare that I even need to use it.
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Pimpl idiom vs Pure virtual class interface
...ugh. OTOH in pure abstract case they effectively link by vtable index so reordering methods or inserting in the middle will break compatibility.
– SnakE
Nov 25 '15 at 11:13
1
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What is Prism for WPF?
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In order to follow Prism guidance it is mandatory the libraries have been installed?
– dios231
Jul 19 '16 at 11:52
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Rails :dependent => :destroy VS :dependent => :delete_all
...e that these are implemented as callbacks, and Rails executes callbacks in order. Therefore, other similar callbacks may affect the :dependent behavior, and the :dependent behavior may affect other callbacks.
:destroy causes all the associated objects to also be destroyed.
:delete_all causes all t...
Convenient C++ struct initialisation
... Comments in sync? Give me a break. Safety goes through the window. Reorder the parameters and boom. Much better with explicit FooBar::FooBar(int foo, float bar) : foo(foo), bar(bar) . Note the explicit keyword. Even breaking the standard is better in regards to safety. In Clang: -Wno-c99-exten...
Visual C++: How to disable specific linker warnings?
...tor, and following the description on that page worked fine with VS10. The order is still 4088, 4099, 4105.
– Andreas Haferburg
Feb 13 '12 at 14:59
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Programmatically obtain the phone number of the Android phone
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In order to verify the taken number, you can send an sms (containing a code) to the number and control the response by putting a listener on "android.provider.Telephony.SMS_RECEIVED". that way you can make sure that the number i...
How to find duplicates in 2 columns not 1
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great thanks, does the order that you group by matter?
– Andrew
Jan 27 '17 at 20:56
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sh...
How to programmatically show next view in ViewPager?
...r, when the user swipes manually and when I jump using setCurrentItem. The order of calls is reversed. When I swipe, it first calls OnPageChangeListener#onPageSelected and then it calls setUserVisibleHint in the fragments. If I use setCurrentItem, it first calls setUserVisibleHint in the fragments a...