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Ruby equivalent of virtualenv?
Is there something similar to the Python utility virtualenv ?
8 Answers
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How do I remove an item from a stl vector with a certain value?
I was looking at the API documentation for stl vector, and noticed there was no method on the vector class that allowed the removal of an element with a certain value. This seems like a common operation, and it seems odd that there's no built in way to do this.
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month name to month number and vice versa in python
I am trying to create a function that can convert a month number to an abbreviated month name or an abbreviated month name to a month number. I thought this might be a common question but I could not find it online.
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Combined area of overlapping circles
I recently came across a problem where I had four circles (midpoints and radius) and had to calculate the area of the union of these circles.
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Python strftime - date without leading 0?
When using Python strftime , is there a way to remove the first 0 of the date if it's before the 10th, ie. so 01 is 1 ? Can't find a % thingy for that?
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Recursive Lock (Mutex) vs Non-Recursive Lock (Mutex)
...course it also needs to unlock it twice, otherwise no other thread can obtain the mutex. Not all systems supporting pthreads also support recursive mutexes, but if they want to be POSIX conform, they have to .
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What do two question marks together mean in C#?
Ran across this line of code:
18 Answers
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what is faster: in_array or isset? [closed]
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The answers so far are spot-on. Using isset in this case is faster because
It uses an O(1) hash search on the key whereas in_array must check every value until it finds a match.
Being an opcode, it has less overhead than calling the in_array built-in functi...
How do I get a platform-dependent new line character?
How do I get a platform-dependent newline in Java? I can’t use "\n" everywhere.
9 Answers
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How to use “raise” keyword in Python [duplicate]
I have read the official definition of "raise", but I still don't quite understand what it does.
6 Answers
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