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What does tilde-greater-than (~>) mean in Ruby gem dependencies? [duplicate]
What does ~> mean in the context of Ruby gem depenedencies?
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Aggregate function in an SQL update query?
I'm trying to set the value in one table to the sum of the values in another table. Something along these lines:
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How to use QueryPerformanceCounter?
I recently decided that I needed to change from using milliseconds to microseconds for my Timer class, and after some research I've decided that QueryPerformanceCounter is probably my safest bet. (The warning on Boost::Posix that it may not works on Win32 API put me off a bit). However, I'm not re...
Install MySQL on Ubuntu without a password prompt
How do I write a script to install MySQL server on Ubuntu?
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What regular expression will match valid international phone numbers?
I need to determine whether a phone number is valid before attempting to dial it. The phone call can go anywhere in the world.
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Is null reference possible?
Is this piece of code valid (and defined behavior)?
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Passing just a type as a parameter in C#
Hypothetically it'd be handy for me to do this:
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'str' object does not support item assignment in Python
I would like to read some characters from a string and put it into other string (Like we do in C).
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How do I Convert DateTime.now to UTC in Ruby?
If I have d = DateTime.now , how do I convert 'd' into UTC (with the appropriate date)?
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Is there a way to rename an Xcode 4 scheme?
I've been looking all over Xcode for this, but I can't find any place that allows you to rename an existing scheme in Xcode 4. Is this even possible?
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