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Choosing between std::map and std::unordered_map [duplicate]
... has a real hash map in unordered_map , why (or when) would I still want to use the good old map over unordered_map on systems where it actually exists? Are there any obvious situations that I cannot immediately see?
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ValueError: numpy.dtype has the wrong size, try recompiling
...
(to expand a bit on my comment)
Numpy developers follow in general a policy of keeping a backward compatible binary interface (ABI). However, the ABI is not forward compatible.
What that means:
A package, that uses numpy in...
Rearranging Tab Bar Controller Order in StoryBoard
In my app iPhone app I have a Tab Bar Controller with 4 relationships to 4 different Table View Controllers. Is there a way to rearrange the order of the relationship in the StoryBoard graphically? I can't find a way to do this and I'm sure I must be missing something!
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When should I use cross apply over inner join?
... t1:
SELECT t1.*, t2o.*
FROM t1
CROSS APPLY
(
SELECT TOP 3 *
FROM t2
WHERE t2.t1_id = t1.id
ORDER BY
t2.rank DESC
) t2o
It cannot be easily formulated with an INNER JOIN condition.
You could probably do something like that...
ASP.Net MVC: How to display a byte array image from model
I've a model with a byte array image file that I want to show on the page.
10 Answers
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How do I grep for all non-ASCII characters?
I have several very large XML files and I'm trying to find the lines that contain non-ASCII characters. I've tried the following:
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What's the difference between an inverted index and a plain old index?
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One common use is "...to allow fast full-text searching."
The two types denote directionality. One takes you forward through the index, and the other takes you backward (the inverse) through the index. That's it. There's no mystery to uncover he...
Python multiprocessing PicklingError: Can't pickle
...ry that I can't reproduce the error with a simpler example, and my code is too complicated to post. If I run the program in IPython shell instead of the regular Python, things work out well.
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/usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.15' not found
...nown-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6.0.15
I copied it in to /usr/lib and redirected libstdc++.so.6 to point to the new one, and now everything works.
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How to disable python warnings
...rnings library. Reading (/scanning) the documentation I only found a way to disable warnings for single functions . But I don't want to change so much of the code.
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