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Should I return EXIT_SUCCESS or 0 from main()?
...for the concept of "operating system" defining symbolic values to return.
Now, in a many-to-many scenario (where many languages serve to write programs to many system) the correspondence between the language convention for "success" and the operating system one (that no one can grant to be always t...
What's the difference between backtracking and depth first search?
...implementation is termed as DFS, the latter kind is called Backtracking.
Now you see, if you’re working with high level languages, most likely you’re actually using Backtracking in the guise of DFS. Moreover, keeping track of visited nodes for a very large problem set could be really memory in...
jQuery get the location of an element relative to window
...().left;
offset.top = elem.getBoundingClientRect().top;
// now we will calculate according to the current document, this current
// document might be same as the document of target field or it may be
// parent of the document of the target field
var childWindo...
Clone() vs Copy constructor- which is recommended in java [duplicate]
...ctor that accepts a Foo, that is in fact a copy constructor. At least you know what clone() should return.
– spaaarky21
Sep 25 '14 at 15:04
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Value of i for (i == -i && i != 0) to return true in Java
...if i get 2's compliment of it, it is again 011111...+1 = 100000...but you know it top of your head or we can apply any logic?
– Sunny
Jul 22 '13 at 6:29
1
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How to 'git pull' into a branch that is not the current one?
...
It's minutes long because a (now) untracked file would be overwritten by an earlier commit. So I have to copy the file, do the git stuff, then put it back. The 'minutes long' comes from my typing speed. (Yes I could script it but it was just to make a...
Preventing an image from being draggable or selectable without using JS
Does anyone know of a way to make an image not draggable and not selectable -- at the same time -- in Firefox, without resorting to Javascript? Seems trivial, but here's the issue:
...
How to increase IDE memory limit in IntelliJ IDEA on Mac?
... IDEA-94050 a new way to supply JVM options was introduced in IDEA 12:
Now it can take VM options from
~/Library/Preferences/<appFolder>/idea.vmoptions and system properties
from ~/Library/Preferences/<appFolder>/idea.properties.
For example, to use -Xmx2048m option you should ...
java.sql.SQLException: Incorrect string value: '\xF0\x9F\x91\xBD\xF0\x9F…'
...For java it's still just "utf-8", but MySQL needs a distinction.
I don't know what driver you are using but a driver agnostic way to set connection charset is to send the query:
SET NAMES 'utf8mb4'
Right after making the connection.
See also this for Connector/J:
14.14: How can I use 4-byt...
Why are there no ++ and -- operators in Python?
...++" as "x += 1, evaluating to the previous binding of x".
If you want to know the original reason, you'll have to either wade through old Python mailing lists or ask somebody who was there (eg. Guido), but it's easy enough to justify after the fact:
Simple increment and decrement aren't needed as ...