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What is more efficient? Using pow to square or just multiply it with itself?
...s used c++ rather than another language. And measuring isn't always a good idea. I might measure bubble sort and quicksort and find bubblesort faster with my 10 items because I didn't have the background to know that the number of items matters hugely and find later on with my 1,000,000 items it was...
How does RegexOptions.Compiled work?
...he which will trigger a super expensive compile. Additionally, you have no idea what the libraries you depend on are doing, so have little ability to control or predict the best possible size of the cache.
See also: BCL team blog
Note : this is relevant for .NET 2.0 and .NET 4.0. There are some ...
How can I make setuptools install a package that's not on PyPI?
...tall http://url/to/my/generated/tar, everything works like expected... Any idea why ?
– zazabe
Oct 28 '14 at 12:24
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What are the use cases for selecting CHAR over VARCHAR in SQL?
... lost you on that last sentence. Joins in SQL Server are based around the idea of "predicates." A predicate is a condition. For example myColumn = 1, or OrderNumber < 500.
So if SQL Server is performing a DML statement, and the predicates, or "keys" being joined on are a fixed length (char), ...
Exporting functions from a DLL with dllexport
... exports(http://msdn.microsoft.com/en-us/library/d91k01sh.aspx). I have no idea why this works, but it does
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Git vs Team Foundation Server [closed]
... and delete them when you finally check-in your feature (but the branching idea is a better way to do it)
– RPDeshaies
Nov 28 '14 at 19:16
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Greedy vs. Reluctant vs. Possessive Quantifiers
...ibe is the slow way; it's a completely separate algorithm from the NFA/DFA idea described in the web page. Backtracking is just easier to understand, which is why that's how regexps are typically explained to beginners.
– David Z
Mar 16 '11 at 1:50
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What is the meaning of the term arena in relation to memory?
... @AndreasHaferburg: Sure, tcmalloc uses some particular algorithm, and the idea behind it is easy enough to explain, but the implementation is still complex and non-trivial. Most importantly, it requires platform-specific knowledge to get the memory ordering right. I use "magic" for things that can ...
How to use git bisect?
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The idea behind git bisect is to perform a binary search in the history to find a particular regression. Imagine that you have the following development history:
... --- 0 --- 1 --- 2 --- 3 --- 4* --- 5 --- current
You know th...
In which order should floats be added to get the most precise result?
...er of first sorting the numbers in ascending order, I'd introduce two more ideas:
Decide on the difference in exponent of two numbers above which you might decide that you would lose too much precision.
Then add the numbers up in order until the exponent of the accumulator is too large for the nex...