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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...
Showing data values on stacked bar chart in ggplot2
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From ggplot 2.2.0 labels can easily be stacked by using position = position_stack(vjust = 0.5) in geom_text.
ggplot(Data, aes(x = Year, y = Frequency, fill = Category, label = Frequency)) +
geom_bar(stat = "identity") +
geom_text(size = 3, position = position_stack(v...
Behaviour for significant change location API when terminated/suspended?
...ionManagerDelegate. You can detect that you are running in the background by checking the applicationState, and do limited work for the case where you are woken from a suspended state to do location processing.
[UIApplication sharedApplication].applicationState == UIApplicationStateBackground
I ...
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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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...
String.equals versus == [duplicate]
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@mo: It isn't equally handled, as you can see by this example.
– user unknown
May 16 '12 at 14:37
53
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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 declare a variable in MySQL?
...r-defined variables are session-specific. That is, a user
variable defined by one client cannot be seen or used by other
clients.
They can be used in SELECT queries using Advanced MySQL user variable techniques.
Local Variables (no prefix) :
Local variables needs to be declared using DECLARE befor...
Array vs. Object efficiency in JavaScript
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@Moshe And thereby all discussion about performance in Javascript should be done. :P
– deceze♦
Jun 25 '13 at 11:18
10
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What is the real overhead of try/catch in C#?
...an exception is thrown or not!
It disables some automatic optimisations (by design), and in some cases injects debugging code, as you can expect from a debugging aid. There will always be people who disagree with me on this point, but the language requires it and the disassembly shows it so those ...