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C++11 rvalues and move semantics confusion (return statement)
I'm trying to understand rvalue references and move semantics of C++11.
6 Answers
6
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Overloading and overriding
What is the difference between overloading and overriding.
12 Answers
12
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Android ListView Divider
...why you should use 1px instead of 1dp or 1dip: if you specify 1dp or 1dip, Android will scale that down. On a 120dpi device, that becomes something like 0.75px translated, which rounds to 0. On some devices, that translates to 2-3 pixels, and it usually looks ugly or sloppy
For dividers, 1px is the...
Can't connect to localhost on SQL Server Express 2012 / 2016
...press 2012 but I cannot connect to localhost. I tried localhost\SQLExpress and Windows authentication but it gives me an error message saying cannot connect. Am I missing something here? I've used SQL Server 2008 before and I've never had issues connecting to localhost. It seems that it can't even f...
Find row where values for column is maximal in a pandas DataFrame
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Use the pandas idxmax function. It's straightforward:
>>> import pandas
>>> import numpy as np
>>> df = pandas.DataFrame(np.random.randn(5,3),columns=['A','B','C'])
>>> df
A B ...
Best way to extract a subvector from a vector?
... +1, also it's O(Y-X), which is less than or equal to O(N) (and in his example much less)
– orip
Jan 7 '09 at 21:53
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How to strip all non-alphabetic characters from string in SQL Server?
...t dbo.RemoveNonAlphaCharacters('abc1234def5678ghi90jkl')
Once you understand the code, you should see that it is relatively simple to change it to remove other characters, too. You could even make this dynamic enough to pass in your search pattern.
Hope it helps.
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How to restart a rails server on Heroku?
Locally I just interrupt (ctrl-c) and then start it again.
5 Answers
5
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What's the recommended approach to resetting migration history using Django South?
I've accumulated quite a few migrations using South (0.7) and Django (1.1.2) which are starting to consume quite a bit of time in my unit tests. I would like to reset the baseline and start a fresh set of migrations. I've reviewed the South documentation , done the usual Google/Stackoverflow search...
Add line break to ::after or ::before pseudo-element content
I do not have access to the HTML or PHP for a page and can only edit via CSS. I've been doing modifications on a site and adding text via the ::after or ::before pseudo-elements and have found that escape Unicode should be used for things such as a space before or after the added content.
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