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Does const mean thread-safe in C++11?
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This is what the Standard Language has to say on thread-safety:
[1.10/4]
Two expression evaluations conflict if one of them modifies a memory location (1.7) and the other one accesses or modifies the same memory location.
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The execution of a program contains a data race if it contains ...
How to query nested objects?
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431
db.messages.find( { headers : { From: "reservations@marriott.com" } } )
This queries for docu...
How do you use the Immediate Window in Visual Studio?
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}
Then in the Immediate Window you can type the following:
? GetSum(2, 4)
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As you can seen, this works really well for static methods. However, if the method is non-static then you need to interact with a reference to the object the method belongs to.
For example, let’s say this is what y...
Does it make sense to do “try-finally” without “catch”?
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Taylor LeeseTaylor Leese
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The differences between .build, .create, and .create! and when should they be used?
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4 Answers
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Shell script to delete directories older than n days
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401
This will do it recursively for you:
find /path/to/base/dir/* -type d -ctime +10 -exec rm -rf...
How to check if a variable exists in a FreeMarker template?
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darckcrystale
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answered Nov 20 '08 at 20:25
Ulf LindbackUlf Lindback
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Using Core Data, iCloud and CloudKit for syncing and backup and how it works together
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answered Jun 27 '14 at 15:55
Tom HarringtonTom Harrington
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How does zip(*[iter(s)]*n) work in Python?
... zip(), and it pulls an item from the iterator each time.
x = iter([1,2,3,4,5,6,7,8,9])
print zip(x, x, x)
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