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Find XOR of all numbers in a given range
...e every 4. So, that's how to arrive at that little lookup table.
Now, consider for a general range of [a,b]. We can use f() to find the XOR for [0,a-1] and [0,b]. Since any value XOR'd with itself is zero, the f(a-1) just cancels out all the values in the XOR run less than a, leaving you with the X...
What does “default” mean after a class' function declaration?
... = delete is stronger: It means, using that function is forbidden, though it still takes part in overload resolution.
– Deduplicator
Jan 26 '15 at 4:25
2
...
About .bash_profile, .bashrc, and where should alias be written in? [duplicate]
...ell after logging in the first time.
– Ioannis Filippidis
Sep 9 '14 at 0:00
8
Go read what I said...
Argparse: Required arguments listed under “optional arguments”?
...them is required. Unfortunately, when the user runs the script without providing the argument, the displayed usage/help text does not indicate that there is a non-optional argument, which I find very confusing. How can I get python to indicate that an argument is not optional?
...
How to make a promise from setTimeout
...ertain contexts), I'm going to use later as the name of the function to avoid confusion.
Basic Delay
Using native promises (or a faithful polyfill) it would look like this:
function later(delay) {
return new Promise(function(resolve) {
setTimeout(resolve, delay);
});
}
Note that...
GUI not working after rewriting to MVC
...r Model needs a way to notify the View of changes. Several approaches are widely used:
In the example below, Model extends Observable for simplicity.
A more common approach uses an EventListenerList, as shown in the Converter application and suggested by the large number of EventListener subinterf...
What is a bank conflict? (Doing Cuda/OpenCL programming)
I have been reading the programming guide for CUDA and OpenCL, and I cannot figure out what a bank conflict is. They just sort of dive into how to solve the problem without elaborating on the subject itself. Can anybody help me understand it? I have no preference if the help is in the context of CUD...
Error “initializer element is not constant” when trying to initialize variable with const
...5 for the nice explanation, but surprisingly this program compiles fine on ideone: ideone.com/lx4Xed. Is it compiler bug or compiler extension? Thanks
– Destructor
Jun 21 '15 at 6:25
...
ctypes - Beginner
...Here's a simple Hello world example:
testlib.c
#include <stdio.h>
void myprint(void);
void myprint()
{
printf("hello world\n");
}
Now compile it as a shared library (mac fix found here):
$ gcc -shared -Wl,-soname,testlib -o testlib.so -fPIC testlib.c
# or... for Mac OS X
$ gcc -shared...
what does -webkit-transform: translate3d(0,0,0); exactly do? Apply to body?
...it have any performance issues? Should I just apply it to the body or individual elements? It seems to improve scroll events drastically.
...