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What exactly do “IB” and “UB” mean?
... times, particularly in the context of C++. I've tried googling them, but apparently those two-letter combinations see a lot of use. :P
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Argparse optional positional arguments?
...se nargs='?' (or nargs='*' if you will need more than one dir)
parser.add_argument('dir', nargs='?', default=os.getcwd())
extended example:
>>> import os, argparse
>>> parser = argparse.ArgumentParser()
>>> parser.add_argument('-v', action='store_true')
_StoreTrueActi...
Why am I getting an Exception with the message “Invalid setup on a non-virtual (overridable in VB) m
...emplate = null);
}
And instead of
private Mock<XmlCupboardAccess> _xmlCupboardAccess = new Mock<XmlCupboardAccess>();
change to
private Mock<IXmlCupboardAccess> _xmlCupboardAccess = new Mock<IXmlCupboardAccess>();
...
Get started with Latex on Linux [closed]
...preference of editors etc. but I would recommend to start with Kile (a KDE app) as it is easy to learn and installing it should install most of the needed packages for LaTex and PDF generation. Just have a look at the screenshots.
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How to determine the encoding of text?
... magic
blob = open('unknown-file', 'rb').read()
m = magic.open(magic.MAGIC_MIME_ENCODING)
m.load()
encoding = m.buffer(blob) # "utf-8" "us-ascii" etc
There is an identically named, but incompatible, python-magic pip package on pypi that also uses libmagic. It can also get the encoding, by doing:...
How to print the full NumPy array, without truncation?
...
Use numpy.set_printoptions:
import sys
import numpy
numpy.set_printoptions(threshold=sys.maxsize)
share
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improve this answer
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std::shared_ptr thread safety explained
I'm reading http://gcc.gnu.org/onlinedocs/libstdc++/manual/shared_ptr.html and some thread safety issues are still not clear for me:
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What does -fPIC mean when building a shared library?
...day and it wouldn't build, I got /usr/bin/ld: /tmp/cc7hXILq.o: relocation R_X86_64_32 against `.rodata' can not be used when making a shared object; recompile with -fPIC so I added fPIC and it built.
– chiliNUT
Nov 18 '15 at 21:14
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Get keys from HashMap in Java
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private Map<String, Integer> _map= new HashMap<String, Integer>();
Iterator<Map.Entry<String,Integer>> itr= _map.entrySet().iterator();
//please check
while(itr.hasNext())
{
...
Isn't it silly that a tiny favicon requires yet another HTTP request? How can I put the favicon into
... Favicon is an SVG, any number of filter effects (both SVG and CSS) can be applied to it.
For instance, alongside the White Unicorn Favicon above, we can easily make a Black Unicorn Favicon by applying the filter:
style="filter: invert(100%);"
Black Unicorn Favicon:
<link rel="icon" href="data:i...