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Programmatically find the number of cores on a machine
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C++11
#include <thread>
//may return 0 when not able to detect
const auto processor_count = std::thread::hardware_concurrency();
Reference: std::thread::hardware_concurrency
In C++ prior to C++11, there's no portable way. Instead, you'll need to use one or...
Check if element exists in jQuery [duplicate]
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answered Jan 4 '11 at 10:17
SarfrazSarfraz
345k6868 gold badges500500 silver badges556556 bronze badges
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Get the closest number out of an array
I have a number from minus 1000 to plus 1000 and I have an array with numbers in it. Like this:
20 Answers
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Why does PEP-8 specify a maximum line length of 79 characters? [closed]
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130
Much of the value of PEP-8 is to stop people arguing about inconsequential formatting rules, and...
Convert Rows to columns using 'Pivot' in SQL Server
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If you are using SQL Server 2005+, then you can use the PIVOT function to transform the data from rows into columns.
It sounds like you will need to use dynamic sql if the weeks are unknown but it is easier to see the correct code using a hard-coded ver...
How do I get the day of week given a date?
... import datetime
>>> datetime.datetime.today()
datetime.datetime(2012, 3, 23, 23, 24, 55, 173504)
>>> datetime.datetime.today().weekday()
4
From the documentation:
Return the day of the week as an integer, where Monday is 0 and Sunday is 6.
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How to escape single quotes in MySQL
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edited Oct 27 '12 at 22:10
answered May 20 '09 at 9:31
Rob...
Check existence of input argument in a Bash shell script
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It is:
if [ $# -eq 0 ]
then
echo "No arguments supplied"
fi
The $# variable will tell you the number of input arguments the script was passed.
Or you can check if an argument is an empty string or not like:
if [ -z "$1" ]
then
echo...
What's the difference between EscapeUriString and EscapeDataString?
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answered Dec 9 '10 at 9:29
JclJcl
23.4k44 gold badges5252 silver badges7878 bronze badges
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Most popular screen sizes/resolutions on Android phones [closed]
...ng for.
– dfetter88
Jun 7 '11 at 23:07
21
That link says nothing of how common a resolution is......