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How do Python's any and all functions work?
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The code in question you're asking about comes from my answer given here. It was intended to solve the problem of comparing multiple bit arrays - i.e. collections of 1 and 0.
any and all are useful when you can rely on the "truthiness" of values - i.e. their value in a b...
Why prefer two's complement over sign-and-magnitude for signed numbers?
...0 (0)
The same is true for subtraction.
Also, if you try to subtract 4 from 6 (two positive numbers) you can 2's complement 4 and add the two together 6 + (-4) = 6 - 4 = 2
This means that subtraction and addition of both positive and negative numbers can all be done by the same circuit in the c...
How to throw std::exceptions with variable messages?
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The standard exceptions can be constructed from a std::string:
#include <stdexcept>
char const * configfile = "hardcode.cfg";
std::string const anotherfile = get_file();
throw std::runtime_error(std::string("Failed: ") + configfile);
throw std::runtime_error(...
Serialize an object to string
... method), while using the latter one will fail when passing a type derived from T.
Here is a link with some example code that motivate this statement, with XmlSerializer throwing an Exception when typeof(T) is used, because you pass an instance of a derived type to a method that calls Serialize...
Set a default font for whole iOS app?
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Developing from Hugues BR answer but using method swizzling I've arrived to a solution that is successfully changing all the fonts to a desired font in my app.
An approach with Dynamic Type should be what you should look for on iOS 7. ...
Why should the copy constructor accept its parameter by reference in C++?
...e copy constructor of the given object; hence, to get the supplied object from caller into our function itself (in this case the copy constructor) we need to call the copy constructor, which is nothing but calling the same function during function declaration.
That's the reason for passing a refer...
Eclipse WTP vs sydeo, “ serves modules without publishing ”
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The answer quoted from @Vsplit
The problem was solved by adding MAVEN with WTP deployment. No
performance problems ... and I don't activate serve modules without
publishing
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Conditional compilation and framework targets
...ld (compiling both and assuming that the first build was the default NET35 from above). Each compile will have the conditional define values set correctly.
In this manner you can even exclude certain files in the project file if you want w/o having to #ifdef the files:
<Compile Include="SomeNe...
Is there a way to make mv create the directory to be moved to if it doesn't exist?
...ent number $#)
eval LAST_ARG=\$$#
# Strip the filename (if it exists) from the destination, getting the directory
DIR_NAME=`echo $2 | sed -e 's_/[^/]*$__'`
# Move to the directory, making the directory if necessary
mkdir -p "$DIR_NAME" || exit
mv "$@"
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Detect if a NumPy array contains at least one non-numeric value?
...swer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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