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Is calculating an MD5 hash less CPU intensive than SHA family functions?
...argez maintenant" link). The report is in French, but it is mostly full of tables and numbers, and numbers are international. The implemented hash functions do not include the SHA-3 candidates (except SHABAL) but I am working on it.
...
Why is require_once so bad to use?
... I doubt your defined() method is any faster than the built-in lookup table, but I agree with your overall point - surely a non-issue?!
– Bobby Jack
Oct 9 '08 at 8:42
1
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How to disable text selection highlighting
... supported by Chrome, Edge, Opera and Firefox */
}
<p>
Selectable text.
</p>
<p class="noselect">
Unselectable text.
</p>
Note that user-select is in standardization process (currently in a W3C working draft). It is not guaranteed to work everywhere and ther...
MongoDB: Combine data from multiple collections into one..how?
... Thanks, Dave. I used this technique for generating export and reporting tables for a high traffic site in production for the last 3 months without issue. Here's another article that describes a similar use of the technique: tebros.com/2011/07/…
– rmarscher
...
How do I tell Maven to use the latest version of a dependency?
...e some uncertainties between versions/releases/snapshots in this very nice table here: goo.gl/iDq6PK
– Ev0oD
Oct 13 '14 at 13:13
1
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Equation (expression) parser with precedence?
...sers.telenet.be/bartl/expressionParser/expressionParser.html.
// operator table
var ops = {
'+' : {op: '+', precedence: 10, assoc: 'L', exec: function(l,r) { return l+r; } },
'-' : {op: '-', precedence: 10, assoc: 'L', exec: function(l,r) { return l-r; } },
'*' : {op: '*', precedence: 2...
Getting an element from a Set
...de/equals. From the Set Javadoc: "Note: Great care must be exercised if mutable objects are used as set elements. The behavior of a set is not specified if the value of an object is changed in a manner that affects equals comparisons while the object is an element in the set." -- I recommend those ...
Best practice using NSLocalizedString
...calizedString = [[NSBundle mainBundle] localizedStringForKey:key value:key table:nil];
// if (value == key) and comment is not nil -> returns comment
if([localizedString isEqualToString:key] && comment !=nil)
return comment;
return localizedString;
}
@end
3. Use i...
Is std::vector so much slower than plain arrays?
...ver the buffer.
(The two overloads where added to handle movable, constructable and non-copyable types -- the performance improvement when working on uninitialized data is a bonus).
The push_back solution also does fencepost checking, which slows it down, so it remains slower than the malloc versi...
C++ performance challenge: integer to std::string conversion
... first one is a fun implementation that doesn't use any precomputed lookup tables or explicit division/modulo. This one is competitive with the others with gcc and with all but Timo's on msvc (for a good reason that I explain below). The second algorithm is my actual submission for highest performan...