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Understanding the meaning of the term and the concept - RAII (Resource Acquisition is Initialization
...programmer might not even be aware of. Here are a few examples beyond the "my local variables will be destroyed whenever I return".
Let us start with an overly simplistic FileHandle class employing RAII:
class FileHandle
{
FILE* file;
public:
explicit FileHandle(const char* name)
{
...
Force re-download of release dependency using Maven
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I just deleted my ~/.m2/repository and that forced a re-download ;)
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Pointer to class data member “::*”
...olve some tricky problems. But to be honest, I've never had to use them in my own code.
Edit: I can't think off-hand of a convincing use for pointers to member data. Pointer to member functions can be used in pluggable architectures, but once again producing an example in a small space defeats me....
Red black tree over avl tree
...ted as binary trees, the red/black-flags simulate 2-3 behaviour
As far as my own understanding goes, AVL trees and RB trees are not very far off in terms of performance. An RB tree is simply a variant of a B-tree and balancing is implemented differently than an AVL tree.
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How to convert lazy sequence to non-lazy in Clojure
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This is to some degree a question of taxonomy. a lazy sequence is just one type of sequence as is a list, vector or map. So the answer is of course "it depends on what type of non lazy sequence you want to get:
Take your pick from:
an ex-lazy (fully evaluated) la...
How to load program reading stdin and taking parameters in gdb?
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If you were doing it from a shell you'd do it like this:
% gdb myprogram
gdb> run params ... < input.txt
This seems to work within emacs too.
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Vertically align an image inside a div with responsive height
...anel to see the effect.
Also, we could apply the padding property to a dummy child or :before/:after pseudo-element to achieve the same result. But note that in this case, the percentage value on padding is relative to the width of the .responsive-container itself.
<div class="responsive-contai...
Rails: Why does find(id) raise an exception in rails? [duplicate]
...==2, then you get a 404, which IMO makes sense.
– Sammy Larbi
May 1 '12 at 19:07
6
@Nick find_by_...
Static extension methods [duplicate]
...ringExtension(this string s)
{
//whatever..
}
When you then call it:
myString.SomeStringExtension();
The compiler just turns it into:
ExtensionClass.SomeStringExtension(myString);
So as you can see, there's no way to do that for static methods.
And another thing just dawned on me: what w...
IDENTITY_INSERT is set to OFF - How to turn it ON?
...tity_insert off the entire table, as the increment by one works great. In my insert to TBL_Content store procedure I have something like this
...