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Is there a way to instantiate objects from a string holding their class name?
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Unfortunately, this doesn't work. As musiphil already pointed out, DerivedB::reg is not initialized if none of its functions or instances is defined in the translation unit derivedb.cpp. That means that the class is not registred untill it is actually instantited. Does any...
Physical vs. logical / soft delete of database record?
...did have several downsides.
The downsides include (not including others already mentioned):
Performance Implications of keeping all that data, We to develop various archiving strategies. For example one area of the application was getting close to generating around 1Gb of data a week.
Cost of ke...
Is there YAML syntax for sharing part of a list or map?
... would be cleaner; you would at least have all the data grouped together already, and your YAML would be standard.
– kittemon
Mar 2 '12 at 0:39
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What is an “unwrapped value” in Swift?
...methods to be initialized in the init() function of the class. I recommend reading the chapters "The Basics" (covers optionals), "Initialization", and "Optional Chaining" in the Swift book released by Apple.
– Cezary Wojcik
Jun 4 '14 at 22:20
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JavaScript: Check if mouse button down?
...les the mouse click much better than mouse up/down, you just need a way of reading that state in the onmousemove event. For that I needed to cheat and relied on the fact that the default cursor is "auto" and I just change it to "default", which is what auto selects by default.
You can use anything ...
Standard alternative to GCC's ##__VA_ARGS__ trick?
...ved no response whatsoever from the committee; I don't even know if anyone read it. In 2016 it was proposed again in N2023, and I encourage anyone who knows how that proposal is going to let us know in the comments.
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Is it better to use C void arguments “void foo(void)” or not “void foo()”? [duplicate]
...iscussing empty parameter lists. This was simply because I imagine someone reading the explanation and then thinking "Oh, I wonder what amazing things I can achieve with this feature?" Then the next thing they'll find out about is using ... to write functions like printf, and I wanted to discourage ...
Git - How to use .netrc file on Windows to save user and password
...rypted .netrc (with gpg).
On Windows: %HOME%/_netrc (_, not '.')
A new read-only credential helper (in contrib/) to interact with the .netrc/.authinfo files has been added.
That script would allow you to use gpg-encrypted netrc files, avoiding the issue of having your credentials stored in a p...
What is exactly the base pointer and stack pointer? To what do they point?
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So far the best explanation i read about esp and ebp.
– Chris Bao
Aug 18 at 0:04
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Reference: mod_rewrite, URL rewriting and “pretty links” explained
...d_rewrite functionality.
All of the below examples assume that you have already included RewriteEngine On in your .htaccess file.
Rewrite Example
Lets take this example:
RewriteRule ^blog/([0-9]+)/([A-Za-z0-9-\+]+)/?$ /blog/index.php?id=$1&title=$2 [NC,L,QSA]
The rule is split into 4 secti...