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Should IBOutlets be strong or weak under ARC?
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PS: weak is a quite a bit cheaper in ARM64 :D
– hypercrypt
Dec 10 '13 at 22:11
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Can I run multiple versions of Google Chrome on the same machine? (Mac or Windows)
...chasF Lekschas
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Applying a git post-commit hook to all current and future repos
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CascabelCascabel
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Efficient way to apply multiple filters to pandas DataFrame or Series
...(np.logical_and, conditions)
c_1 = data.col1 == True
c_2 = data.col2 < 64
c_3 = data.col3 != 4
data_filtered = data[conjunction(c1,c2,c3)]
np.logical operates on and is fast, but does not take more than two arguments, which is handled by functools.reduce.
Note that this still has some redundan...
What does “#define _GNU_SOURCE” imply?
...HELPING ICE
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75
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Is inline assembly language slower than native C++ code?
...hecking for non-overlap if you omit __restrict). SSE2 is baseline for x86-64, and with shuffling SSE2 can do 2x 32-bit multiplies at once (producing 64-bit products, hence the shuffling to put the results back together). godbolt.org/z/r7F_uo. (SSE4.1 is needed for pmulld: packed 32x32 => 32-bit...
How can I specify a [DllImport] path at runtime?
...y.
I've used this method to choose at runtime whether to load a 32-bit or 64-bit native DLL without having to modify a bunch of P/Invoke-d functions. Stick the loading code in a static constructor for the type that has the imported functions and it'll all work fine.
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What specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?
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Jonathan LefflerJonathan Leffler
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Unable to find valid certification path to requested target - error even after cert imported
...e. It doesn't explain why or why not it works.
– user6490459
Dec 16 '18 at 11:01
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Path of assets in CSS files in Symfony 2
... border: 1px solid green;
padding: 5px;
margin: 5px;
width: 64px;
height: 64px;
display: inline-block;
vertical-align: top;
}
And a.css, b.css, c.css, etc: all identical, just changing the color and the CSS selector.
.a
{
background: red url('../images/devil.png');
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