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What is sandboxing?
... just want to put restrictions on what child can do for Security Reasons.
Now coming to our software sandbox, we let any software(child) to execute(play) but with some restrictions over what it (he) can do. We can feel safe & secure about what the executing software can do.
You've seen & u...
What is a segmentation fault?
...nd introducing hard-to-debug memory bugs. Whenever you get a segfault you know you are doing something wrong with memory – accessing variable that has already been freed, writing to a read-only portion of the memory, etc. Segmentation fault is essentially the same in most languages that let you me...
Does const mean thread-safe in C++11?
...ration --at least not in respect to data races--.
Does that mean const is now the equivalent of Java's synchronized?
No. Not at all...
Consider the following overly simplified class representing a rectangle:
class rect {
int width = 0, height = 0;
public:
/*...*/
void set_size( int ne...
Using Auto Layout in UITableView for dynamic cell layouts & variable row heights
...ke your time! I recommend setting up your constraints in code because you know exactly which constraints are being added where, and it's a lot easier to debug when things go wrong. Adding constraints in code can be just as easy as and significantly more powerful than Interface Builder using layout a...
In git, what is the difference between merge --squash and rebase?
...of squash using --commit explicitly.
git/git builtin/merge.c#cmd_merge() now includes:
if (option_commit > 0)
die(_("You cannot combine --squash with --commit."));
git rebase --interactive
replays some or all of your commits on a new base, allowing you to squash (or more recently "f...
Using Node.js only vs. using Node.js with Apache/Nginx
...ng Node to serve static files is fine in all circumstances as long as you know what you're doing. It is certainly a new paradigm to use the application server to serve static files as so many (every?) competing technologies (PHP, Ruby, Python, etc) require a web server like HTTPD or Nginx in front o...
What can I do to resolve a “Row not found or changed” Exception in LINQ to SQL on a SQL Server Compa
...pping, LINQ will load it successfully and set the column-String to null.
Now you change something and call
SubmitChanges().
LINQ will generate a SQL query
containing "WHERE [title] IS NULL", to make sure the title has not been changed by someone else.
LINQ looks up the properties of
[title] in the...
Nested or Inner Class in PHP
...(method_exists($this, $method)) {
/* The method exists so now we want to know if the
* caller is a child of our Package class. If not we throw an exception
* Note: This is a kind of a dirty way of finding out who's
* calling the me...
Match multiline text using regular expression
...e very end (or before a newline at the end, but we'll leave that aside for now). But if the string contains newlines, you can choose for ^ and $ to match at the start and end of any logical line, not just the start and end of the whole string, by setting the MULTILINE flag.
So forget about what MU...
What's the difference between SoftReference and WeakReference in Java?
...utilize free
memory for performance optimization, but don't risk an OOME.
Now for the [*]. Keeping a SoftReference can't cause an OOME in itself. If
on the other hand you mistakenly use SoftReference for a task a WeakReference is meant
to be used (namely, you keep information associated with an Obj...