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How to automatically add user account AND password with a Bash script?
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I'm surprised no-one has mentioned the reason passwd doesn't make this easy: this approach will put the new password straight into the shell history, unless steps are taken to prevent this. Anyone committed to going this route, should keep th...
Why is === faster than == in PHP?
...tor) doesn’t need to do any converting whatsoever and thus less work is done, which makes it faster.
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Append a dictionary to a dictionary [duplicate]
I have two existing dictionaries, and I wish to 'append' one of them to the other. By that I mean that the key,values of the other dictionary should be made into the first dictionary. For example:
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Why should I avoid multiple inheritance in C++?
... inheritance (abbreviated as MI) smells, which means that usually, it was done for bad reasons, and it will blow back in the face of the maintainer.
Summary
Consider composition of features, instead of inheritance
Be wary of the Diamond of Dread
Consider inheritance of multiple interfaces instead o...
What do 'statically linked' and 'dynamically linked' mean?
...and they're only bought into the in-memory copy of the executable, not the one on disk.
It's basically a method of deferred linking. There's an even more deferred method (called late binding on some systems) that won't bring in the dynamically linked file until you actually try to call a function w...
What Haskell representation is recommended for 2D, unboxed pixel arrays with millions of pixels?
...you already know Haskell arrays, or the vector library. The key stepping stone is the use of shape types instead of simple index types, to address multidimensional indices (and even stencils).
The repa-io package includes support for reading and writing .bmp image files, though support for more for...
What is compiler, linker, loader?
...n:
Here the optimization is CPU dependent. Suppose if there are more than one
jumps in the code then they are converted to one as:
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jmp:<addr1>
<addr1> jmp:<addr2>
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The control jumps to the directly.
Then the last ph...
Hibernate, @SequenceGenerator and allocationSize
... when using @SequenceGenerator - it increases real database sequence by one , multiple this value by 50 (default allocationSize value) - and then uses this value as entity ID.
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“Unknown class in Interface Builder file” error at runtime
...t really need to add a _keepAtLinkTime method. Simply calling an existing one, such as:
[MyClass class];
does the trick (as long as you derive from an NSObject).
Of course, you can call this in any location of your code. I guess it could even be in unreachable code. The idea is to fool the...
Transposing a 2D-array in JavaScript
... If you use it twice on the same array, it comes back to the first one intead of rotating 90' again
– Olivier Pons
Mar 3 '17 at 13:51
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