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Ruby: Change negative number to positive number?
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my answer is just for negative numbers, if you need to always have the absolute value then this is definitely the better way.
– Brandon Bodnar
Mar 19 '10 at 22:41
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Finding the average of a list
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if the list is composed of ints, the the result under python 2 will be an int
– mitch
Jan 27 '12 at 21:01
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Python argparse command line flags without arguments
...have it, the argument w is expecting a value after -w on the command line. If you are just looking to flip a switch by setting a variable True or False, have a look at http://docs.python.org/dev/library/argparse.html#action (specifically store_true and store_false)
import argparse
parser = argpars...
Efficiently test if a port is open on Linux?
...output connection
exec 6<&- # close input connection
To determine if someone is listening, attempt to connect by loopback. If it fails, then the port is closed or we aren't allowed access. Afterwards, close the connection.
Modify this for your use case, such as sending an email, exiting t...
What happens if i return before the end of using statement? Will the dispose be called?
...Service Reference / Client Proxy! -- and when that happens it can be very difficult to track down the original exception if Dispose was called during an exception stack unwind, since the original exception gets swallowed in favor of the new exception generated by the Dispose call. It can be maddenin...
Java 8 forEach with index [duplicate]
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Would this work in case you want specific order for params (e.g. sorted)?
– Tomer Cagan
Jun 4 '16 at 11:49
1
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How does comparison operator works with null int?
..."Operators" section:
When you perform comparisons with nullable types, if the value of one of the nullable types is null and the other is not, all comparisons evaluate to false except for !=
So both a > b and a < b evaluate to false since a is null...
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Why doesn't Python have multiline comments?
...lock comments is IDE has no idea what you want thus can't show comment in different style as needed.
– Baiyan Huang
Sep 17 '12 at 3:58
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How to implement classic sorting algorithms in modern C++?
...:bind and _1 / _2 placeholder syntax.
C++11 and beyond also have std::find_if_not, whereas C++98 needs std::find_if with a std::not1 around a function object.
C++ Style
There is no generally acceptable C++14 style yet. For better or for worse, I closely follow Scott Meyers's draft Effective Moder...
Why is sed not recognizing \t as a tab?
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Ah yes; to clarify: not all versions of sed understand \t in the replacement part of the expression (it recognized \t in the pattern matching part just fine)
– John Weldon
Apr 9 '10 at 19:07
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