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Is it safe to use -1 to set all bits to true?
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20 Answers
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Active
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How to crop circular area from bitmap in Android
...ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
// c...
How do I use vim registers?
... D. Ben Knoble
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answered Sep 30 '09 at 13:12
FModa3FModa3
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Rolling median algorithm in C
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edited Dec 12 '14 at 17:05
Josh O'Brien
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a...
Select random row from a sqlite table
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answered Feb 17 '10 at 10:06
Adriaan StanderAdriaan Stander
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CSS 3 slide-in from left transition
... One
Relevant Code
.wrapper:hover #slide {
transition: 1s;
left: 0;
}
In this case, Im just transitioning the position from left: -100px; to 0; with a 1s. duration. It's also possible to move the element using transform: translate();
CSS animation
Demo Two
#slide {
position: abso...
Efficiently test if a port is open on Linux?
...o use:
exec 6<>/dev/tcp/ip.addr.of.server/445
echo -e "GET / HTTP/1.0\n" >&6
cat <&6
I'm using 6 as the file descriptor because 0,1,2 are stdin, stdout, and stderr. 5 is sometimes used by Bash for child processes, so 3,4,6,7,8, and 9 should be safe.
As per the comment below, ...
Breaking out of a nested loop
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209
Well, goto, but that is ugly, and not always possible. You can also place the loops into a meth...
Truncating floats in Python
...ng'''
s = '{}'.format(f)
if 'e' in s or 'E' in s:
return '{0:.{1}f}'.format(f, n)
i, p, d = s.partition('.')
return '.'.join([i, (d+'0'*n)[:n]])
This is valid in Python 2.7 and 3.1+. For older versions, it's not possible to get the same "intelligent rounding" effect (at lea...
Regular expression for first and last name
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202
Don't forget about names like:
Mathias d'Arras
Martin Luther King, Jr.
Hector Sausage-Hausen
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