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Is there a typical state machine implementation pattern?
...tement the best way to go?
We have a current state (state) and a trigger for the transition.
19 Answers
...
“Private” (implementation) class in Python
...prefix:
class _Internal:
...
This is the official Python convention for 'internal' symbols; "from module import *" does not import underscore-prefixed objects.
Edit: Reference to the single underscore convention
sha...
What is the difference between AF_INET and PF_INET in socket programming?
... thought that maybe a address family (what the "AF" in "AF_INET" stands
for) might support several protocols that were referenced by their
protocol family (what the "PF" in "PF_INET" stands for).
That didn't happen. Oh well. So the correct thing to do is to use AF_INET in your
struct sockad...
addEventListener not working in IE8
...lse {
_checkbox.attachEvent("onclick", setCheckedValues);
}
Update::
For Internet Explorer versions prior to IE9, attachEvent method should be used to register the specified listener to the EventTarget it is called on, for others addEventListener should be used.
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Why do we need extern “C”{ #include } in C++?
... expects the data contained in the header file to be compiled to a certain format—the C++ 'ABI', or 'Application Binary Interface', so the linker chokes up. This is preferable to passing C++ data to a function expecting C data.
(To get into the really nitty-gritty, C++'s ABI generally 'mangles' t...
If isset $_POST
I have a form on one page that submits to another page. There, it checks if the input mail is filled. If so then do something and if it is not filled, do something else. I don't understand why it always says that it is set, even if I send an empty form. What is missing or wrong?
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Literal suffix for byte in .NET?
...ould write byte x = 5 , but that's a bit inconsequential if you use var for local variables.
4 Answers
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Correct owner/group/permissions for Apache 2 site files/folders under Mac OS X?
...stion on the web, so I'm hoping someone out there can put this one to rest for me? My permissions are screwed up on my sites and I'm not sure how to fix them without just slamming a recursive 777 on everything which is quite obviously incorrect.
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Return a value if no rows are found in Microsoft tSQL
... returned. I'd prefer that false (0) is returned in that scenario. Looking for the simplest method to account for no records.
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Multiple commands in gdb separated by some sort of delimiter ';'?
...
And if you forget how you defined a function, you can use show user <function name> to see its source, e.g. show user fn.
– ntc2
Dec 27 '16 at 22:17
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