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Recursive lambda functions in C++11
... Wondering why this isn't marked as 'answer', and that Python one is classified as 'Answer' ?!
– Ajay
Jan 26 '13 at 6:05
1
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namespaces for enum types - best practices
Often, one needs several enumerated types together. Sometimes, one has a name clash. Two solutions to this come to mind: use a namespace, or use 'larger' enum element names. Still, the namespace solution has two possible implementations: a dummy class with nested enum, or a full blown namespace.
...
Map Tiling Algorithm
...low the edge tiles marked with an X are all green tiles with a tan tile as one or more of their eight neighbouring tiles. With different types of terrain this condition could translate to a tile being an edge tile if it has neighbours of lower terrain-number.
Once all edge tiles are detected the ...
Python Git Module experiences? [closed]
...le' )
# commit
print repo.git.commit( m='my commit message' )
# now we are one commit ahead
print repo.git.status()
Everything else in GitPython just makes it easier to navigate. I'm fairly well satisfied with this library and appreciate that it is a wrapper on the underlying git tools.
UPDATE: I...
JavaScript function to add X months to a date
...Add twelve months to February 29th 2020 (should be February 28th 2021)
Add one month to August 31st 2020 (should be September 30th 2020)
If the day of the month changes when applying setMonth, then we know we have overflowed into the following month due to a difference in month length. In this cas...
SQL query to group by day
... edited Jan 3 '14 at 14:15
Gone Coding
86.4k2323 gold badges167167 silver badges183183 bronze badges
answered Nov 1 '09 at 21:22
...
Does “git fetch --tags” include “git fetch”?
...ts from the included perf script, which sets up a situation similar to the one described above:
Test HEAD^ HEAD
----------------------------------------------------------
5550.4: fetch 11.21(10.42+0.78) 0.08(0.04+0.02) -99.3%
That applies only for a situation where:
...
dd: How to calculate optimal blocksize? [closed]
...have said, there is no universally correct block size; what is optimal for one situation or one piece of hardware may be terribly inefficient for another. Also, depending on the health of the disks it may be preferable to use a different block size than what is "optimal".
One thing that is pretty r...
When and why are database joins expensive?
...d water.
Chris Date, who in company with Dr Ted Codd was the original proponent of the relational data model, ran out of patience with misinformed arguments against normalisation and systematically demolished them using scientific method: he got large databases and tested these assertions.
I thin...
Remove empty elements from an array in Javascript
...gs, the above function wouldn't remove elements that are an empty string.
One typical pattern that I see often used is to remove elements that are falsy, which include an empty string "", 0, NaN, null, undefined, and false.
You can pass to the filter method, the Boolean constructor function, or re...