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The Definitive C Book Guide and List
...rning
This is a list of random books of diverse quality. In the view of some people (with some justification), it is no longer a list of recommended books. Some of the listed books contain blatantly incorrect statements or teach wrong/harmful practices. People who are aware of such books can edit ...
Differences between Oracle JDK and OpenJDK
... and maintained currently by Oracle only.
OpenJDK and Oracle JDK are implementations of the same Java specification passed the TCK (Java Technology Certification Kit).
Most of the vendors of JDK are written on top of OpenJDK by doing a few tweaks to [mostly to replace licensed proprietary parts / ...
When should I use a composite index?
For example, I have a homes table:
9 Answers
9
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How do I install a custom font on an HTML site
...
Yes, you can use the CSS feature named @font-face.
It has only been officially approved in CSS3, but been proposed and implemented in CSS2 and has been supported in IE for quite a long time.
You declare it in the CSS like this:
@font-face { font-family: Del...
What kind of virtual machine is BEAM (the Erlang VM)?
...tem virtual machine" or a "process virtual machine". It's kind of fuzzy to me where BEAM lies. Is there another kind of virtual machine I am not aware of?
...
Insert, on duplicate update in PostgreSQL?
...propriate:
CREATE TABLE db (a INT PRIMARY KEY, b TEXT);
CREATE FUNCTION merge_db(key INT, data TEXT) RETURNS VOID AS
$$
BEGIN
LOOP
-- first try to update the key
-- note that "a" must be unique
UPDATE db SET b = data WHERE a = key;
IF found THEN
RET...
HTML5 Canvas vs. SVG vs. div
What is the best approach for creating elements on the fly and being able to move them around? For example, let's say I want to create a rectangle, circle and polygon and then select those objects and move them around.
...
AngularJS- Login and Authentication in each route and controller
... down in 3 parts: the state of the user is stored in a service, in the run method you watch when the route changes and you check if the user is allowed to access the requested page, in your main controller you watch if the state of the user change.
app.run(['$rootScope', '$location', 'Auth', functi...
Spinlock versus Semaphore
...r mainly in four things:
1. What they are
A spinlock is one possible implementation of a lock, namely one that is implemented by busy waiting ("spinning"). A semaphore is a generalization of a lock (or, the other way around, a lock is a special case of a semaphore). Usually, but not necessarily, sp...
Possible heap pollution via varargs parameter
...s.get(0);
@SafeVarargs does not prevent this at all. However, there are methods which provably will not pollute the heap, the compiler just can't prove it. Previously, callers of such APIs would get annoying warnings that were completely pointless but had to be suppressed at every call site. Now ...