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python tuple to dict
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Try:
>>> t = ((1, 'a'),(2, 'b'))
>>> dict((y, x) for x, y in t)
{'a': 1, 'b': 2}
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What is the advantage of GCC's __builtin_expect in if else statements?
I came across a #define in which they use __builtin_expect .
6 Answers
6
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Re-doing a reverted merge in Git
...t sounds. Look at the official document on this topic.
---o---o---o---M---x---x---W---x---Y
/
---A---B-------------------C---D
to allow:
---o---o---o---M---x---x-------x-------*
/ /
---A---B-------------------C---D
But does it al...
What is a Question Mark “?” and Colon “:” Operator Used for? [duplicate]
...'s not the only ternary operator, just the most common one.
Here's a good example from Wikipedia demonstrating how it works:
A traditional if-else construct in C, Java and JavaScript is written:
if (a > b) {
result = x;
} else {
result = y;
}
This can be rewritten as the following state...
How to install Java SDK on CentOS?
I have CentOS 5, but I don't know the steps to install Java SDK on Linux.
12 Answers
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Pandas - Get first row value of a given column
... a ridiculously easy question... but I'm not seeing the easy answer I was expecting.
7 Answers
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What's the (hidden) cost of Scala's lazy val?
... answered Jun 15 '10 at 7:51
oxbow_lakesoxbow_lakes
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Which icon sizes should my Windows application's icon include?
I have a Windows application which will run in Windows XP and newer (i.e. Vista/7). According to the Vista UI Guidelines , the standard sizes are 16x16, 32x32, 48x48, 256x256 (XP standard sizes do not include the 256x256 icon). In addition to those sizes, I also have 96x96 and 128x128 (and could cr...
NOT using repository pattern, use the ORM as is (EF)
...I've thrown the towel in and given up on it, here's why.
Coding for the exception
Do you code for the 1% chance your database is going to change from one technology to another? If you're thinking about your business's future state and say yes that's a possibility then a) they must have a lot of m...
What breaking changes are introduced in C++11?
...+11 that will cause some old code to stop compiling: the introduction of explicit operator bool() in the standard library, replacing old instances of operator void*() . Granted, the code that this will break is probably code that should not have been valid in the first place, but it's still a bre...