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Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
... until dest is ready before executing. This false dependency is (now) documented by Intel as erratum HSD146 (Haswell) and SKL029 (Skylake)
Skylake fixed this for lzcnt and tzcnt.
Cannon Lake (and Ice Lake) fixed this for popcnt.
bsf/bsr have a true output dependency: output unmodified for input=0....
SHA1 vs md5 vs SHA256: which to use for a PHP login?
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Neither. You should use bcrypt. The hashes you mention are all optimized to be quick and easy on hardware, and so cracking them share the same qualities. If you have no other choice, at least be sure to use a long salt and re-hash multiple times.
Using bcrypt in PHP 5.5+...
Loading a properties file from Java package
...paths (those without a leading '/') in getResource()/getResourceAsStream() mean that the resource will be searched relative to the directory which represents the package the class is in.
Using java.lang.String.class.getResource("foo.txt") would search for the (inexistent) file /java/lang/String/foo...
How to list out all the subviews in a uiviewcontroller in iOS?
...ws of subview
[self listSubviewsOfView:subview];
}
}
As commented by @Greg Meletic, you can skip the COUNT CHECK LINE above.
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How to convert a string Date to long millseconds
I have a date inside a string, something like "12-December-2012".
How can I convert this into milliseconds (long)?
9 Answer...
How to sort a list/tuple of lists/tuples by the element at a given index?
I have some data either in a list of lists or a list of tuples, like this:
10 Answers
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How do I specify different layouts for portrait and landscape orientations?
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Does that mean all activities need to define both a landscape and a portrait view if I do this?
– Jay Askren
Jan 23 '10 at 19:01
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How to use `subprocess` command with pipes
I want to use subprocess.check_output() with ps -A | grep 'process_name' .
I tried various solutions but so far nothing worked. Can someone guide me how to do it?
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TypeError: $.ajax(…) is not a function?
I'm trying to create a simple AJAX request which returns some data from a MySQL database. Here's my function below:
13 Answ...
How do I abort the execution of a Python script? [duplicate]
...ave a simple Python script that I want to stop executing if a condition is met.
8 Answers
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