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Does free(ptr) where ptr is NULL corrupt memory?
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Multiprocessing vs Threading Python [duplicate]
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Lightweight - low memory footprint
Shared memory - makes access to state from another context easier
Allows you to easily make responsive UIs
cPython C extension modules that properly release the GIL will run in parallel
Great option for I/O-bound applications
Cons
cPython - subject to the GIL...
Use email address as primary key?
...nt comparison. However, this does not matter if you simply retrieve a user from the database using the e-mail address. It does matter if you have complex queries with multiple joins.
If you store information about users in multiple tables, the foreign keys to the users table will be the e-mail addr...
How to send a stacktrace to log4j?
...eparator(), this helped me to print a stacktrace which I got as a response from a remote service
– Stephanie
May 13 '16 at 6:46
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Kotlin Ternary Conditional Operator
... but invalid Java/C#/JavaScript
var v = if (a) b else c
If you're coming from a language where if is a statement, this might seem unnatural but that feeling should soon subside.
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How to set the font size in Emacs?
...rito Which autocomplete? In my Emacs, set-face-attribute is indeed missing from M-x (execute-extended-command), but it is present in M-: (eval-expression) and C-h f (describe-function). M-: is probably what you want, if you don't want to put this in your .emacs file.
– Rory O'K...
UITableViewCell show white background and cannot be modified on iOS7
I've implemented a custom table view cell class that inherit from UITableViewCell . The tableview contains a background image, so I want cell's background to be transparent. It looks great before iOS7.
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When is it better to use an NSSet over an NSArray?
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The image from Apple's Documentation describes it very well:
Array is an ordered (order is maintained when you add) sequence of elements
[array addObject:@1];
[array addObject:@2];
[array addObject:@3];
[array addObject:@4];
[array...
How do I center text horizontally and vertically in a TextView?
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edited Jul 10 '18 at 16:11
Khemraj
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Can I obtain method parameter name using Java reflection?
...needs @ConstructorProperties annotation for un-ambiguously creating object from primitive types.
– Bharat
Jan 7 '19 at 16:11
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