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Why switch is faster than if
...ic byte-code offset. Thus, when you give the statement an offset of 3, it knows to jump ahead 3 to find the correct branch.
Lookup switch uses a binary search to find the correct code branch. This runs in O(log n) time, which is still good, but not the best.
For more information on this, see here:...
What is object serialization?
... are saying the format depends on platform and libraries.I really want to know the format.
– JAVA
Aug 31 '14 at 19:52
1
...
Bare asterisk in function arguments?
...o", 3,5)
>>> test_args_kwargs(*args)
arg1: two
arg2: 3
arg3: 5
# now with **kwargs:
>>> kwargs = {"arg3": 3, "arg2": "two","arg1":5}
>>> test_args_kwargs(**kwargs)
arg1: 5
arg2: two
arg3: 3
So *args allows you to dynamically build a list of arguments that will be taken ...
GDB corrupted stack frame - How to debug?
...adresses (0x00000002 and the like) are actually PC values, not SP values. Now, when you get this kind of SEGV, with a bogus (very small) PC address, 99% of the time it's due to calling through a bogus function pointer. Note that virtual calls in C++ are implemented via function pointers, so any pr...
How can I quantify difference between two images?
...*255/rng
Run the main function:
if __name__ == "__main__":
main()
Now you can put this all in a script and run against two images. If we compare image to itself, there is no difference:
$ python compare.py one.jpg one.jpg
Manhattan norm: 0.0 / per pixel: 0.0
Zero norm: 0 / per pixel: 0.0
...
How to overload std::swap()
...ave to use a free function; they establish the protocol. Second, I don't know why you object to having two implementations, but most classes are doomed to being sorted inefficiently if you can't accept having a non-member swap. Overloading rules ensure that if both declarations are seen, the more ...
Why should casting be avoided? [closed]
...e cast does nothing more than tell the compiler (in essence): "shut up, I know what I'm doing" -- i.e., it ensures that even when you do a conversion that could cause problems, the compiler won't warn you about those potential problems. Just for example, char a=(char)123456;. The exact result of thi...
Left align and right align within div in Bootstrap
...
2018 Update...
Bootstrap 4.1+
pull-right is now float-right
text-right is the same as 3.x, and works for inline elements
both float-* and text-* are responsive for different alignment at different widths (ie: float-sm-right)
The flexbox utils (eg:justify-content-betw...
How to print color in console using System.out.println?
...which should return the console to its defaults. It's useful if you don't know the default color or are also using some of the other attributes like background color, font styles, etc.
– WhiteFang34
Apr 23 '11 at 8:38
...
How do I make calls to a REST api using C#?
...token and see it from the console. Do you have any tips in order for me to now take this token to use for authentication/login? I want to use GET to pull some data, but only could if I'm logged in. Where could I learn more about this? Thanks!
– Paul Laguna
Jan ...