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Why does this code segfault on 64-bit architecture but work fine on 32-bit?
...♦Flexo
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Why is Java's boolean primitive size not defined?
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Short answer: yes, boolean values are manipulated as 32-bit entities, but arrays of booleans use 1 byte per element.
Longer answer: the JVM uses a 32-bit stack cell, used to hold local variables, method arguments, and expression values. Primitives that are smaller than 1 cell ...
Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?
...feated if it wasn't done that way.
This way you can write fast code using 32-bit values in 64-bit mode without having to explicitly break dependencies all the time. Without this behaviour, every single 32-bit instruction in 64-bit mode would have to wait on something that happened before, even thou...
What are queues in jQuery?
...ction() {
// lets do something with google maps:
var $map = $("#map_canvas");
var myLatlng = new google.maps.LatLng(-34.397, 150.644);
var myOptions = {zoom: 8, center: myLatlng, mapTypeId: google.maps.MapTypeId.ROADMAP};
var geocoder = new google.maps.Geocoder();
var map = n...
Why is creating a new process more expensive on Windows than Linux?
...ation, it is probably a good idea to distinguish between NT and Windows/Win32. As far as NT (i.e. the kernel itself) goes, I do not think process creation (NtCreateProcess) and thread creation (NtCreateThread) is significantly slower as on the average Unix. There might be a little bit more going on,...
SQLite UPSERT / UPDATE OR INSERT
...ostgreSQL syntax.
INSERT INTO players (user_name, age)
VALUES('steven', 32)
ON CONFLICT(user_name)
DO UPDATE SET age=excluded.age;
Note: For those having to use a version of SQLite earlier than 3.24.0, please reference this answer below (posted by me, @MarqueIV).
However if you do...
How do popular apps authenticate user requests from their mobile app to their server?
...wered Dec 23 '14 at 20:14
diyoda_diyoda_
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Load and execution sequence of a web page?
...and ready. Read more about it: http://docs.jquery.com/Tutorials:Introducing_$(document).ready()
Edit - This portion elaborates more on the parallel or not part:
By default, and from my current understanding, browser usually runs each page on 3 ways: HTML parser, Javascript/DOM, and CSS.
The HTML par...
c# why can't a nullable int be assigned null as a value [duplicate]
...is instead:
int? accom = (accomStr == "noval" ? (int?)null : Convert.ToInt32(accomStr));
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Eclipse reported “Failed to load JNI shared library” [duplicate]
...ure that your version of Eclipse and JDK match, either both 64-bit or both 32-bit (you can't mix-and-match 32-bit with 64-bit).
Second, the -vm argument in eclipse.ini should point to the java executable. See
http://wiki.eclipse.org/Eclipse.ini for examples.
If you're unsure of what version (64-b...