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Reloading module giving NameError: name 'reload' is not defined
I'm trying to reload a module I have already imported in Python 3. I know that you only need to import once and executing the import command again won't do anything.
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What is the difference between `-fpic` and `-fPIC` gcc parameters?
I've already read the gcc manpage, but I still can't understand the difference between -fpic and -fPIC . Can someone explain it, in a very simple and clear way?
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static constructors in C++? I need to initialize private static objects
...tic data members of the class. It only gets run once (as the variables are read only and only need to be set once) and since it's a function of the class it can access its private members. I could add code in the constructor that checks to see if the vector is initialized, and initialize it if it's ...
Unable to Cast from Parent Class to Child Class
...Employee
Employee e = (Employee)p; // Casting allowed
Conclusion : After reading above all, hope it will make sense now like how parent to child conversion is possible(Case 3).
Answer To The Question :
Your answer is
in case 2.Where you can see such casting is not allowed by OOP and yo...
“sending 'const NSString *' to parameter of type 'NSString *' discards qualifiers” warning
...sing something different than it expects.
Besides, NSString objects are already immutable, so making them const NSString is meaningless.
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How to specify the location with wget?
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"-P" is the right option, please read on for more related information:
wget -nd -np -P /dest/dir --recursive http://url/dir1/dir2
Relevant snippets from man pages for convenience:
-P prefix
--directory-prefix=prefix
Set directory prefix to p...
What does status=canceled for a resource mean in Chrome Developer Tools?
...ubmitted, and that messed it all up...
This answer will probably never be read by anyone, but I figured why not write it :)
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Why is 1/1/1970 the “epoch time”?
...would be January 0, 1900 for countless Microsoft Excel & Lotus 1-2-3 spreadsheets, or January 1, 2001 used by Apple’s Cocoa framework in over a billion iOS/macOS machines worldwide in countless apps. Or perhaps January 6, 1980 used by GPS devices?
Many granularities
Different systems use dif...
Which sort algorithm works best on mostly sorted data? [closed]
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Only a few items => INSERTION SORT
Items are mostly sorted already => INSERTION SORT
Concerned about worst-case scenarios => HEAP SORT
Interested in a good average-case result => QUICKSORT
Items are drawn from a dense universe => BUCKET SORT
Desire to write as little ...
PostgreSQL function for last inserted ID
...is, you must resort to SELECT max(id) FROM table (of course, this will not read uncommitted inserts from other transactions).
Conversely, you should never use SELECT max(id) FROM table instead one of the 3 options above, to get the id just generated by your INSERT statement, because (apart from pe...