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How to parse XML to R data frame
...rn xpath than the official xpath page.
– Laurent Bergé
Aug 28 at 11:22
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What is the performance cost of having a virtual method in a C++ class?
...cache misses on execution (deliberately, since I was trying to examine the CPU pipeline in isolation), so they discount that cost.
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@Basic(optional = false) vs @Column(nullable = false) in JPA
... which really should be used, maybe both?
– Xiè Jìléi
Apr 9 '11 at 7:47
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@Xie Jilei: From bo...
How to generate a random alpha-numeric string?
...unity wiki
10 revs, 9 users 42%numéro6
22
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How much is the overhead of smart pointers compared to normal pointers in C++?
...tps://vimeo.com/131189627
It goes deep into the implementation details and CPU architecture for write barriers, atomic locks etc. once listening you will never talk about this feature being cheap. If you just want a proof of the magnitude slower, skip the first 48 minutes and watch him running examp...
What are the differences between a multidimensional array and an array of arrays in C#?
...nal but my guess is that it has to do with some optimalization made on the CPU
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.NET WPF Remember window size between sessions
...ngy has posted an improved answer based on this.
– Stéphane Gourichon
Mar 19 '18 at 21:12
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What is the difference between Google App Engine and Google Compute Engine?
...s offers app engine applications a bit more flexibility over app platform, CPU and memory options. Like GCE you can create a custom runtime environment in these VMs for app engine application. Actually Managed VMs of App Engine blurs the frontier between IAAS and PAAS to some extent.
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Join a list of strings in python and wrap each string in quotation marks
...will be automatically escaped. +1 for cleverness.
– Félix Caron
Jun 16 '17 at 15:17
This is one of those clever tidbi...
In which order should floats be added to get the most precise result?
...bly avoid using -ffast-math but that in many applications where you may be CPU-bound but don't care about precise numerical computations, (game programming for instance), -ffast-math is reasonable to use. Thus, I'd like to ammend my strongly worded "banned" comment.
– Chris A....