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Method call if not null in C#
...enchmark I did indicates that handling an event with no subscribers is 2-3 times slower when using the the "default delegate" pattern. (On my dual core 2.5GHz laptop that means 279ms : 785ms for raising 50 million not-subscribed events.). For application hot spots, that might be an issue to consider...
Measuring elapsed time with the Time module
With the Time module in python is it possible to measure elapsed time? If so, how do I do that?
10 Answers
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How can I pass a list as a command-line argument with argparse?
...1234 -l 2345 -l 3456 -l 4567
With append you provide the option multiple times to build up the list.
Don't use type=list!!! - There is probably no situation where you would want to use type=list with argparse. Ever.
Let's take a look in more detail at some of the different ways one might try t...
How to display line numbers in 'less' (GNU)
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wow, I have looked at the help for less dozens of times hoping to find the answer to this. I have always overlooked "-<flag> Toggle a command line option [see OPTIONS below]." ...which means you can type "-N" from within less. I have been annoyed by this for about a de...
Is optimisation level -O3 dangerous in g++?
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In the early days of gcc (2.8 etc.) and in the times of egcs, and redhat 2.96 -O3 was quite buggy sometimes. But this is over a decade ago, and -O3 is not much different than other levels of optimizations (in buggyness).
It does however tend to reveal cases where people ...
Read logcat programmatically within application
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I just discovered that clearing the log can take some time. So if you clear the log and then read the log immediate, some old entries may not yet been cleared. In addition, some newly added log entries can be deleted as because they get added before the clear completes. It do...
Use space as a delimiter with cut command
...All solutions above result in the exact same string (in each group) by the time cut sees them:
(s): cut sees -d, as its own argument, followed by a separate argument that contains a space char - without quotes or \ prefix!.
(d): cut sees -d plus a space char - without quotes or \ prefix! - as par...
How can I do test setup using the testing package in Go
.... It should then call
os.Exit with the result of m.Run
It took me some time to figure out that this means that if a test contains a function func TestMain(m *testing.M) then this function will be called instead of running the test. And in this function I can define how the tests will run. For ex...
What is the best way to measure execution time of a function? [duplicate]
Obviously I can do and DateTime.Now.After - DateTime.Now.Before but there must be something more sophisticated.
4 Answ...
Import PEM into Java Key Store
...r both. Either remove all extraneous data and feed in each PEM in one at a time or use my tool, as detailed in my answer.
– Alastair McCormack
Apr 15 '13 at 14:39
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