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Difference between Python datetime vs time modules
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104
the time module is principally for working with unix time stamps; expressed as a floating poin...
Do I need to manually close an ifstream?
...end of a function you can always use a nested scope.
In the standard (27.8.1.5 Class template basic_ifstream), ifstream is to be implemented with a basic_filebuf member holding the actual file handle. It is held as a member so that when an ifstream object destructs, it also calls the destructor on ...
Return 0 if field is null in MySQL
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Use IFNULL:
IFNULL(expr1, 0)
From the documentation:
If expr1 is not NULL, IFNULL() returns expr1; otherwise it returns expr2. IFNULL() returns a numeric or string value, depending on the context in which it is used.
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Add EBS to Ubuntu EC2 Instance
...ed to format the EBS volume (block device) with a file system between step 1 and step 2. So the entire process with your sample mount point is:
Create EBS volume.
Attach EBS volume to /dev/sdf (EC2's external name for this particular device number).
Format file system /dev/xvdf (Ubuntu's internal ...
Is there a way to follow redirects with command line cURL?
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answered Aug 27 '13 at 20:24
Nathan KuchtaNathan Kuchta
11.1k22 gold badges2323 silver badges3333 bronze badges
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How to break out from a ruby block?
...do |line| # Iterate over the lines in file f
next if line[0,1] == "#" # If this line is a comment, go to the next
puts eval(line)
end
When used in a block, break transfers control out of the block, out of the iterator that invoked the block, and to the first expression followin...
Double vs single quotes
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answered Jun 18 '11 at 10:22
JitsJits
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Getting rid of all the rounded corners in Twitter Bootstrap
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16 Answers
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How does generic lambda work in C++14?
How does generic lambda work ( auto keyword as an argument type) in C++14 standard?
3 Answers
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CATALINA_OPTS vs JAVA_OPTS - What is the difference?
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1 Answer
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