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How to calculate number of days between two given dates?
If I have two dates (ex. '8/18/2008' and '9/26/2008' ), what is the best way to get the number of days between these two dates?
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Ineligible Devices section appeared in Xcode 6.x.x
...e restarting Xcode
Update: in Yosemite, Xcode 6.0.1 does not support iOS 8.1, you have to update to Xcode 6.1 if you want to debug on iOS 8.1 device, or you will probably have the same problem as described in the topic
Update 2: Xcode Beta 6.3 does not support iOS 8.2 (and also 8.1 - thanks @steve...
Reference — What does this symbol mean in PHP?
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edited Nov 12 '18 at 8:39
community wiki
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Is there a way to measure how sorted a list is?
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answered Jun 8 '13 at 0:21
Timothy ShieldsTimothy Shields
61.7k1717 gold badges103103 silver badges154154 bronze badges
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Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
...(x & 0x0f0f0f0f) << 4));
x = (((x & 0xff00ff00) >> 8) | ((x & 0x00ff00ff) << 8));
return((x >> 16) | (x << 16));
}
From the famous Bit Twiddling Hacks page:
Fastest (lookup table):
static const unsigned char BitReverseTable256[] =
{
0x00, 0x8...
Why does the C preprocessor interpret the word “linux” as the constant “1”?
...ammers would simply avoid using those names for their own purposes.
The 1989 ANSI C standard introduced rules restricting what symbols an implementation could legally predefine. A macro predefined by the compiler could only have a name starting with two underscores, or with an underscore followed b...
ruby 1.9: invalid byte sequence in UTF-8
... The problem is that I now receive a lot of " invalid byte sequence in UTF-8 " errors.
From what I understood, the net/http library doesn't have any encoding specific options and the stuff that comes in is basically not properly tagged.
What would be the best way to actually work with that inc...
SQL: capitalize first letter only [duplicate]
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answered Mar 8 '13 at 9:36
Scott SellersScott Sellers
3,99033 gold badges2222 silver badges4343 bronze badges
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Get the Row(s) which have the max count in groups using groupby
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1 MM1 S1 n 2
2 MM1 S3 cb 5
3 MM2 S3 mk 8
4 MM2 S4 bg 10
5 MM2 S4 dgd 1
6 MM4 S2 rd 2
7 MM4 S2 cb 2
8 MM4 S2 uyi 7
In [2]: df.groupby(['Mt'], sort=False)['count'].max()
Out[2]:
Mt
S1 3
S3 8
S4 10
S2 7
N...
How to check the version before installing a package using apt-get?
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edited Jul 6 at 8:51
jotadepicas
1,99922 gold badges1919 silver badges4242 bronze badges
answe...