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Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
I was looking for the fastest way to popcount large arrays of data. I encountered a very weird effect: Changing the loop variable from unsigned to uint64_t made the performance drop by 50% on my PC.
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How to read a CSV file into a .NET Datatable
...r for flat files
It's easy to configure and easy to use. I urge you to take a look.
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How do I see what character set a MySQL database / table / column is?
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Manuel Jordan
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answered Jun 26 '09 at 16:07
ZenshaiZenshai
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Stash only one file out of multiple files that have changed with Git?
...se git stash save -p "my commit message". This way you can select which hunks should be added to stash, whole files can be selected as well.
You'll be prompted with a few actions for each hunk:
y - stash this hunk
n - do not stash this hunk
q - quit; do not stash this hunk or any of the ...
MySQL select with CONCAT condition
..... i have a table with firstname and lastname fields
and i have a string like "Bob Jones" or "Bob Michael Jones" and several others.
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PostgreSQL database default location on Linux
What is the default directory where PostgreSQL will keep all databases on Linux?
8 Answers
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Array Length in Java
... answered Jan 6 '12 at 9:34
KaiKai
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Is there a “do … while” loop in Ruby?
...condition> is rejected by Ruby's author Matz. Instead he suggests using Kernel#loop, e.g.
loop do
# some code here
break if <condition>
end
Here's an email exchange in 23 Nov 2005 where Matz states:
|> Don't use it please. I'm regretting this feature, and I'd like to
|> rem...
How to catch an Exception from a thread
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Dan CruzDan Cruz
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What's the cleanest way of applying map() to a dictionary in Swift?
I'd like to map a function on all keys in the dictionary. I was hoping something like the following would work, but filter cannot be applied to dictionary directly. What's the cleanest way of achieving this?
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