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Understanding Apache's access log
...e remote host (ie the client IP)
%l is the identity of the user determined by identd (not usually used since not reliable)
%u is the user name determined by HTTP authentication
%t is the time the request was received.
%r is the request line from the client. ("GET / HTTP/1.0")
%>s is the status co...
PostgreSQL disable more output
... inefficient; you're better off just not producing them in the first place by adjusting your queries.
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What REALLY happens when you don't free after malloc?
... resources after one is done with them, be it file handles/memory/mutexs. By having that habit, one will not make that sort of mistake when building servers. Some servers are expected to run 24x7. In those cases, any leak of any sort means that your server will eventually run out of that resourc...
Limit a stream by a predicate
...and dropWhile are pretty widespread, occurring in Scala, Python, Groovy, Ruby, Haskell, and Clojure. The asymmetry with skip and limit is unfortunate. Maybe skip and limit ought to have been called drop and take, but those aren't as intuitive unless you're already familiar with Haskell.
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How costly is .NET reflection?
...lay or problem with it. It's a very powerful mechanism and it is even used by .NET, so I don't see why you shouldn't give it a try.
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Round to 5 (or other number) in Python
...o see why the above works. You want to make sure that your number divided by 5 is an integer, correctly rounded. So, we first do exactly that (round(float(x)/5) where float is only needed in Python2), and then since we divided by 5, we multiply by 5 as well. The final conversion to int is because...
What is the difference between client-side and server-side programming?
...o the class of computer programs on the web that are executed client-side, by the user's web browser, instead of server-side.
JavaScript is visible to the user and can be easily modified, so for security stuff we must not rely on JavaScript.
So when you make a HTTP request on server, the server f...
round up to 2 decimal places in java? [duplicate]
...ecome 395.03. I can see why as 395034 is nearest long that is then divided by 100. However I think generally people would expect the result as 395.04.
– Vishal Saxena
Oct 3 '18 at 15:46
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How do I get PyLint to recognize numpy members?
...solution worked like a charm: I added numpy to the list of ignored modules by modifying my pylintrc file, in the [TYPECHECK] section:
[TYPECHECK]
ignored-modules = numpy
Depending on the error, you might also need to add the following line (still in the [TYPECHECK] section):
ignored-classes = n...
Pimpl idiom vs Pure virtual class interface
...t's appropriate to think about whether it's going to be
A Value Type
Copy by value, identity is never important. It's appropriate for it to be a key in a std::map. Example, a "string" class, or a "date" class, or a "complex number" class. To "copy" instances of such a class makes sense.
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