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Performance difference between IIf() and If
...er is about the side-effects. The performance isn’t really relevant when one of the options is obsolete. For what it’s worth, the native operator If is more efficient than the IIf function by far.
– Konrad Rudolph
May 4 '15 at 12:32
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Learning to write a compiler [closed]
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I think one worth mentioning is Coursera's compilers course. It has nice videos and walks through creating a java like language / simple compiler. Coursera Compilers Link
– QuantumKarl
Feb 24 '1...
What's the best way to parse command line arguments? [closed]
...u are better off going with optparse over getopt. getopt is pretty much a one-to-one mapping of the standard getopt(3) C library functions, and not very easy to use.
optparse, while being a bit more verbose, is much better structured and simpler to extend later on.
Here's a typical line to add an...
SQL Data Reader - handling Null column values
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If someone needs the column name rather than the index, you can do: int colIndex = reader.GetOrdinal(fieldname); and easily overload @marc_s's SafeGetString function.
– ilans
Feb 15 '15 at 13:0...
How to increment datetime by custom months in python without using library [duplicate]
...ce the month in original date to January whereas passing months=1 will add one month to original date.
Note: this will requires python-dateutil. To install it you need to run in Linux terminal.
sudo apt-get update && sudo apt-get install python-dateutil
Explanation : Add month value in p...
top -c command in linux to filter processes listed based on processname
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It can be done interactively
After running top -c , hit o and write a filter on a column, e.g. to show rows where COMMAND column contains the string foo, write COMMAND=foo
If you just want some basic output this might be enough:
top ...
Importing files from different folder
...fit of guaranteeing that the path is searched before others (even built-in ones) in the case of naming conflicts.
– Cameron
Sep 2 '11 at 2:47
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Is there an ExecutorService that uses the current thread?
...stance
= new SameThreadExecutorService();
// The executor has one worker thread. Give it a Runnable that waits
// until the executor service is shut down.
// All other submitted tasks will use the RejectedExecutionHandler
// which runs tasks using the caller's thread.
i...
Reasons for using the set.seed function
...he same code with different seeds until you get the "best" result (I have done this for examples). To guard against accusations of doing this it is best to choose a seed that has some obvious meaning, either always the same seed, or the date, or I use char2seed and the last name of the principle in...
What's the difference between unit, functional, acceptance, and integration tests? [closed]
... on the class should cause y to happen). Unit tests should be focussed on one particular feature (e.g., calling the pop method when the stack is empty should throw an InvalidOperationException). Everything it touches should be done in memory; this means that the test code and the code under test s...