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In C/C++ what's the simplest way to reverse the order of bits in a byte?
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102
If you are talking about a single byte, a table-lookup is probably the best bet, unless for som...
Remove all values within one list from another list? [duplicate]
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>>> a = range(1, 10)
>>> [x for x in a if x not in [2, 3, 7]]
[1, 4, 5, 6, 8, 9]
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Detect Retina Display
...unning iOS4+ and if the [UIScreen mainScreen].scale property is equal to 2.0. You CANNOT assume a device is running iOS4+ if the scale property exists, as the iPad 3.2 also contains this property.
On an iPad running iOS3.2, scale will return 1.0 in 1x mode, and 2.0 in 2x mode -- even though we kno...
“SetPropertiesRule” warning message when starting Tomcat from Eclipse [duplicate]
When I start Tomcat (6.0.18) from Eclipse (3.4), I receive this message (first in the log):
12 Answers
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Style disabled button with CSS
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Example for the disabled selector:
button {
border: 1px solid #0066cc;
background-color: #0099cc;
color: #ffffff;
padding: 5px 10px;
}
button:hover {
border: 1px solid #0099cc;
background-color: #00aacc;
color: #ffffff;
padding: 5px 10px;
}
button:disabled,
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Is there a way to select sibling nodes?
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edited Feb 20 '15 at 16:19
answered May 9 '09 at 0:12
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How to remove all characters after a specific character in python?
...ost once, and take the first piece:
sep = '...'
rest = text.split(sep, 1)[0]
You didn't say what should happen if the separator isn't present. Both this and Alex's solution will return the entire string in that case.
sha...
How do I concatenate const/literal strings in C?
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401
In C, "strings" are just plain char arrays. Therefore, you can't directly concatenate them with...
Select n random rows from SQL Server table
I've got a SQL Server table with about 50,000 rows in it. I want to select about 5,000 of those rows at random. I've thought of a complicated way, creating a temp table with a "random number" column, copying my table into that, looping through the temp table and updating each row with RAND() , and ...
How to Resize a Bitmap in Android?
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560
Change:
profileImage.setImageBitmap(
BitmapFactory.decodeByteArray(imageAsBytes, 0, imageAs...