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When is std::weak_ptr useful?
I started studying smart pointers of C++11 and I don't see any useful use of std::weak_ptr . Can someone tell me when std::weak_ptr is useful/necessary?
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Embedding SVG into ReactJS
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Thanks, starting from this I've managed to import an svg from file as a React component without any loader, I've just removed ``` xmlns:osb="openswatchbook.org/uri/2009/osb"``` from the svg tag, leaving only the xlmns. It's all abou...
Why does std::getline() skip input after a formatted extraction?
...s appended to all user input from a terminal as it's telling the stream to start a new line. You can safely account for this by using std::getline when checking for multiple lines of user input. The default behavior of std::getline will read everything up to and including the newline character \n fr...
Optimal number of threads per core
...t it looks pretty, it's deceiving at first glance. First of all the y-axis starts at 42, exaggerating the apparent difference between the tested machines. Secondly, the weird progression of x-axis values suggest that 'time-taken' does not scale linearly with 'number of threads', this is especially t...
Favicon dimensions? [duplicate]
... service for generating all the relevant favicons is realfavicongenerator. Start with a 260x260px image and get everything you need, including the mark-up for using them all correctly.
– marnusw
May 6 '15 at 11:38
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Why doesn't Haskell's Prelude.read return a Maybe?
... over "fail."
The good news is that folks were sufficiently convinced to start moving away from fail in the libraries. The bad news is that the proposal got lost in the shuffle. There should be such a function, although one is easy to write (and there are zillions of very similar versions floating...
“static const” vs “#define” vs “enum”
... some embedded systems still don't have that much, though I would probably start off using static consts and only change to #defines if needed.
– fluffyben
Mar 7 '12 at 11:36
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How to reload apache configuration for a site without restarting apache
...sites-enabled directory. How do I reload the new configuration without restarting apache? Is it possible?
4 Answers
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Difference between static STATIC_URL and STATIC_ROOT on Django
...this can be misleading. What I mean by leaving it empty is that is usually starts out empty, no files in it. I will update the answer to remove the confusion.
– keni
Apr 18 '18 at 13:33
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Why doesn't django's model.save() call full_clean()?
...dering, the auto clean on save is not enabled in django kernel.
If we are starting a new project and want the default save method on Model could clean automatically, we can use the following signal to do clean before every model was saved.
from django.dispatch import receiver
from django.db.model...