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Differences between Emacs and Vim
Without getting into a religious argument about why one is better than the other, what are the practical differences between Emacs and Vim? I'm looking to learn one or the other, but I realize the learning curve for each is high and I can't decide. I have never used an editor of this type (I've al...
Is there a performance difference between i++ and ++i in C++?
..., if i is an instance of a C++ class, then i++ and ++i are making calls to one of the operator++ functions. Here's a standard pair of these functions:
Foo& Foo::operator++() // called for ++i
{
this->data += 1;
return *this;
}
Foo Foo::operator++(int ignored_dummy_value) // call...
Dump a mysql database to a plaintext (CSV) backup from the command line
...form that is only convenient for mysql to read. CSV seems more universal (one file per table is fine). But if there are advantages to mysqldump, I'm all ears. Also, I'd like something I can run from the command line (linux). If that's a mysql script, pointers to how to make such a thing would be...
Bidirectional 1 to 1 Dictionary in C#
...neric, bidirectional 1 to 1 Dictionary class in C# (2), ie. a BiDictionaryOneToOne<T, S> which is guaranteed to only contain one of each value and key (up to RefEquals anyway), and which can be searched using either key or value. Anyone know of one, or should I just implement it myself? I ca...
What is the easiest way to make a C++ program crash?
...se but I don't actually know the best and shortest way to do that, does anyone know what to put between my:
30 Answers
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ASP.NET MS11-100: how can I change the limit on the maximum number of posted form values?
...o address several serious security vulnerabilities in the .NET Framework. One of the fixes introduced by MS11-100 temporarily mitigates a potential DoS attack involving hash table collisions. It appears this fix breaks pages that contain a lot of POST data. In our case, on pages that have very ...
How do you add an array to another array in Ruby and not end up with a multi-dimensional result?
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well done for being the only one (of 5 I can see) who actually pointed out what was wrong with the code presented. +1
– Mike Woodhouse
Nov 26 '09 at 11:12
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How to make an app's background image repeat
...
One thing to keep in mind is that you should have folders drawable-hdpi, drawable-mdpi & drawable-ldpi, you'll need to add this backrepeat.xml file and the relevant images to each of these to allow this functionality in h...
Object comparison in JavaScript [duplicate]
...dexOf(y) > -1) {
return false;
}
// Quick checking of one object being a subset of another.
// todo: cache the structure of arguments[0] for performance
for (p in y) {
if (y.hasOwnProperty(p) !== x.hasOwnProperty(p)) {
return false;
}
...
How to reorder data.table columns (without copying)
... is made at all, other than temporary working memory, which is as large as one column.
so should be pretty efficient. See ?setcolorder for details.
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