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fork() branches more than expected?
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when i=0
Process_1: Buffered text= 1 dot
Process_2(created by Process_1): Buffered text= 1 dot
when i=1
Process_3(created by Process_1): Inherit 1 buffered dot from Process_1 and prints 1 dot by itself. In total Process_3 prints 2 dots.
Process_4(created by Process_2): Inherit 1 b...
Why should the “PIMPL” idiom be used? [duplicate]
...rivate: cat_->Purr(); Purr() is not accessible from the outside because by deafult it's private. What am I missing here?
– binaryguy
Aug 14 '15 at 9:20
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Update data in ListFragment as part of ViewPager
...ents. The ViewPager is on a vertical phone screen, the lists are not side-by-side.
10 Answers
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How to print an exception in Python?
...on. Thus I strongly prefer printing the traceback as in the solution below by @Cat Plus Plus! E.g. I had an issue with an invalid unicode character during XML parsing and printing the exception showed only "invalid character" or so. Not very helpful. The full trace showed "UnicodeEncodeError: chara...
Why are Python's 'private' methods not actually private?
...es us the ability to create 'private' methods and variables within a class by prepending double underscores to the name, like this: __myPrivateMethod() . How, then, can one explain this
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Why does Razor _layout.cshtml have a leading underscore in file name?
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That's how Ruby on Rails does it (Partials start with a _ but the Render Partial call does not include the _), and ASP.net MVC has drawn heavy inspiration from it.
No technical reason really, just a convention to clearly show the intent ...
Why isn't the size of an array parameter the same as within main?
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In C++ you can pass the array by reference to the function but you cannot do that in C.
– Prasoon Saurav
Dec 29 '09 at 15:32
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Filter dataframe rows if value in column is in a set list of values [duplicate]
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@dbyte: You just use the ~ operator: rpt[~rpt['STK_ID'].isin(stk_list)]
– BrenBarn
Jun 26 '13 at 17:43
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Swift - which types to use? NSString or String
...ObjectiveC().length for example. You can also cast a String to an NSString by using str as NSString.
However, the necessity for these techniques to explicitly use the Foundation types, or at least some of them, may be obsolete in the future, since from what is stated in the language reference, the ...
Prefer composition over inheritance?
...ve from Airplane.
Does TypeB want only some/part of the behavior exposed by TypeA? Indicates need for Composition.
e.g. A Bird may need only the fly behavior of an Airplane. In this case, it makes sense to extract it out as an interface / class / both and make it a member of both classes.
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