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What is Bit Masking?
...lying the mask to the value means that we want to clear the first (higher) 4 bits, and keep the last (lower) 4 bits. Thus we have extracted the lower 4 bits. The result is:
Mask: 00001111b
Value: 01010101b
Result: 00000101b
Masking is implemented using AND, so in C we get:
uint8_t stuff(...) ...
Measuring code execution time
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edited Apr 2 '19 at 14:30
Sebastian Brosch
35.1k1414 gold badges5555 silver badges6969 bronze badges
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How to prevent line break at hyphens on all browsers
...atures
– derekerdmann
Jan 6 '12 at 14:29
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Max length UITextField
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edited May 7 '19 at 23:24
answered Aug 10 '14 at 0:13
Ima...
What size should apple-touch-icon.png be for iPad and iPhone?
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146
Updated list December 2019, iOS13
One icon for iOS 180x180 px and one for android 192x192 px (d...
How to decide font color in white or black depending on background color?
...and choose the corresponding text.
if (red*0.299 + green*0.587 + blue*0.114) > 186 use #000000 else use #ffffff
The threshold of 186 is based on theory, but can be adjusted to taste. Based on the comments below a threshold of 150 may work better for you.
Edit: The above is simple and works re...
How do I create a comma-separated list from an array in PHP?
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answered Mar 12 '10 at 19:24
ryeguyryeguy
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How to get random value out of an array?
I have an array called $ran = array(1,2,3,4);
20 Answers
20
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Linear Regression and group by in R
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49
Here's one way using the lme4 package.
library(lme4)
d <- data.frame(state=rep(c('NY', 'C...
Flexbox: center horizontally and vertically
...v class="flex-item">3</div>
<div class="flex-item">4</div>
</div>
</div>
See demo at: http://jsfiddle.net/audetwebdesign/tFscL/
Your .flex-item elements should be block level (div instead of span) if you want the height and top/bottom padding t...