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Why was the switch statement designed to need a break?
... software,
for instance, when compiling operators
that can have either one or two
operands:
switch (operator->num_of_operands) {
case 2: process_operand( operator->operand_2);
/* FALLTHRU */
case 1: process_operand( operator->operand_1);
break;
}
Case...
How can I sharpen an image in OpenCV?
...
One general procedure is laid out in the Wikipedia article on unsharp masking:
You use a Gaussian smoothing filter and subtract the smoothed version from the original image (in a weighted way so the values of a constant area ...
Sort JavaScript object by key
...er that they are giving you a solution which works. Paradox, isn't it?
No one mention why those solutions are working. They are, because in most of the browser's implementations values in objects are stored in the order in which they were added. That's why if you create new object from sorted list ...
How to create a drop shadow only on one side of an element?
...you can do this with just an extra parameter to the box-shadow CSS as everyone else just pointed out. Here's the demo:
http://jsfiddle.net/K88H9/821/
CSS
-webkit-box-shadow: 0 4px 4px -2px #000000;
-moz-box-shadow: 0 4px 4px -2px #000000;
box-shadow: 0 4px 4px -2px #000000;
This wo...
Why dict.get(key) instead of dict[key]?
...ionary["bogus"]
would raise a KeyError.
If omitted, default_value is None, such that
dictionary.get("bogus") # <-- No default specified -- defaults to None
returns None just like
dictionary.get("bogus", None)
would.
...
Re-open *scratch* buffer in Emacs?
... up to this, if your .emacs defines a different default scratch mode, this one will be the mode for the new scratch - not List Interaction mode.
– ocodo
Mar 30 '12 at 1:47
add...
Is there a “do … until” in Python? [duplicate]
..."loop-and-a-half". Python continues to support this construct because it's one of the easiest loop patterns to correctly write and understand. See cs.duke.edu/~ola/patterns/plopd/loops.html#loop-and-a-half
– Brandon
Nov 2 '09 at 19:05
...
Does Git warn me if a shorthand commit ID can refer to 2 different commits?
...
Given the structure of the git source code, it looks like one of the two outputs is a warning, and the other one an error. Not certain, though.
– Izkata
May 6 '14 at 21:07
...
How can I open multiple files using “with open” in Python?
I want to change a couple of files at one time, iff I can write to all of them. I'm wondering if I somehow can combine the multiple open calls with the with statement:
...
Passing a 2D array to a C++ function
...
@Zack: You're right, there're only really two cases; one is a pointer-to-pointer and other being a single pointer to an integer array of size n i.e. int (*a) [10].
– legends2k
Jul 10 '13 at 10:44
...