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How to get the source directory of a Bash script from within the script itself?
... "dirname/readlink: $(dirname $(readlink -f $0))"
Running this script in my home dir, using a relative path:
>>>$ ./whatdir.sh
pwd: /Users/phatblat
$0: ./whatdir.sh
basename: whatdir.sh
dirname: .
dirname/readlink: /Users/phatblat
Again, but using the full path to the script:
>>...
How do I declare a 2d array in C++ using new?
...
Oh my God, this is complete garbage, this is utterly wrong. This is no 2D array. "A dynamic 2D array is basically an array of pointers to arrays." – NOOOO, FFS! T (*ptr)[M] = new T[N][M]; is the correct solution… No amount o...
What do these words mean in Git: Repository, fork, branch, clone, track?
...
I'm going to answer my own question with an RTFM.
But, read this fine manual. As the author puts it:
“The conclusion I draw from this is that you can only really use Git if you understand how Git works. Merely memorizing which commands you s...
What do single quotes do in C++ when used on multiple characters?
...
@Boann Yes, my sentiments exactly. But you can safely use it in switches and whatnot, as direct comparison for == should check out
– bobobobo
Dec 21 '13 at 2:07
...
How much size “Null” value takes in SQL Server
... clearer. Apologies for the disappearing comment. I meant to revise it but my Internet Connection went down between deletion and submission! It also depends a bit (From the comments section here) "For heap and clustered index record, there's always a NULL bitmap . For non-clustered indexes, there wo...
HSL to RGB color conversion
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I'm trying to use this for a project, but my results are only coming out as grayscale. Is this a limitation of HSL<->RGB? The wikipedia article seems to suggest that only a single value is set to all 3 channels.
– Bill
Jan...
Java, Classpath, Classloading => Multiple Versions of the same jar/project
... a library (an http client) that some of the other frameworks/jars used in my project require. But all of them require different major versions like:
...
Effects of the extern keyword on C functions
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@dirkgently, My real question is is there any effect for using exetrn with function declaration, and if there's none why is it possible to add extern to a function declaration. And the answer is no, there's no effect, and there was once a...
How to trigger event when a variable's value is changed?
...
Seems to me like you want to create a property.
public int MyProperty
{
get { return _myProperty; }
set
{
_myProperty = value;
if (_myProperty == 1)
{
// DO SOMETHING HERE
}
}
}
private int _myProperty;
This allows you to...
How to get the number of characters in a std::string?
...and so on. I can't remember the specifics of them all right off the top of my head.
The STLSoft libraries have abstracted this all out with what they call string access shims, which can be used to get the string length (and other aspects) from any type. So for all of the above (including the non-st...