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Difference between new and override
... var c2 = new Class2();
c2.DoIt();
((Base2)c2).DoIt();
Console.Read();
}
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How to use single storyboard uiviewcontroller for multiple subclass
...that the pointer to self doesn't change. So inspection of the object (e.g. reading _ivar / property values) after object_setClass can cause crashes.
– Patrik
Aug 7 '17 at 9:06
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Favourite performance tuning tricks [closed]
...ndex would help by limiting the number of rows coming in (which saves disk reads).
Focus on the largest cost subtree first. Changing that subtree can often change the entire query plan.
Common problems I've seen are:
If there's a lot of joins, sometimes Sql Server will choose to expand the joins, ...
Why is argc not a constant?
.... Look at the example I provided and the compilation error, "assignment of read only location".
– Cheers and hth. - Alf
Dec 13 '13 at 4:47
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Difference between ProcessBuilder and Runtime.exec()
...s because there's no tokenisation: the command to run is assumed to have already been tokenised. Instead, you should use
ProcessBuilder b = new ProcessBuilder("C:\DoStuff.exe", "-arg1", "-arg2");
or alternatively
List<String> params = java.util.Arrays.asList("C:\DoStuff.exe", "-arg1", "-a...
Can I use __init__.py to define global variables?
...you recommend if the code inside config.py is to be run only once? Say I'm reading a settings.json file inside config.py and I don't want to open() it every time I import config.py.
– Augiwan
Jul 3 '14 at 8:12
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Why do we need to install gulp globally and locally?
...following two questions:
Why do I need to install gulp locally if I've already installed it globally?
Why do I need to install gulp globally if I've already installed it locally?
Several others have provided excellent answers to theses questions in isolation, but I thought it would be beneficial...
visual c++: #include files from other projects in the same solution
... because you include the directory in the Additional Include Directories already, so Visual Studio will know where to look for it.
If you don't want to add every header file location in the project settings, you could just include a directory up to a point, and then #include relative to that point:...
Include .so library in apk in android studio [duplicate]
... am trying to use sqlcipher , which uses .so libraries internally. I have read the documentation on how to use sqlcipher with android app . I have followed the steps and it compiles without any error. But, at runtime it throws UnsatisfiedLinkError .
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How to declare a global variable in a .js file
...with the keyword var or the prefix window.
You standardize this syntax for reading the variables this way as well which means that a locally scoped var doesn't clobber the global var or vice versa. For example what happens here is ambiguous:
greeting = "Aloha";
function foo() {
greetin...