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Reference: mod_rewrite, URL rewriting and “pretty links” explained
...P requests. An HTTP request at its most basic level looks like this:
GET /foo/bar.html HTTP/1.1
This is the simple request of a browser to a web server requesting the URL /foo/bar.html from it. It is important to stress that it does not request a file, it requests just some arbitrary URL. The req...
How do you specify a byte literal in Java?
...it quacks like a duck, I call it a duck.
What you can't do is this:
void foo(byte a) {
...
}
foo( 0xa ); // will not compile
You have to cast as follows:
foo( (byte) 0xa );
But keep in mind that these will all compile, and they are using "byte literals":
void foo(byte a) {
...
}
...
Configuring so that pip install can work from github
...need the whole python package, with a setup.py file in it.
A package named foo would be:
foo # the installable package
├── foo
│ ├── __init__.py
│ └── bar.py
└── setup.py
And install from github like:
$ pip install git+ssh://git@github.com/myuser/foo.git
or
$ pip...
Why should the “PIMPL” idiom be used? [duplicate]
...
Well, I wouldn't use it. I have a better alternative:
foo.h:
class Foo {
public:
virtual ~Foo() { }
virtual void someMethod() = 0;
// This "replaces" the constructor
static Foo *create();
}
foo.cpp:
namespace {
class FooImpl: virtual public Foo {
pu...
Is there YAML syntax for sharing part of a list or map?
...ick, as in the following (untested) example:
sitelist: &sites
? www.foo.com # "www.foo.com" is the key, the value is null
? www.bar.com
anotherlist:
<< : *sites # merge *sites into this mapping
? www.baz.com # add extra stuff
Some things to notice. Firstly, since << ...
What's the point of const pointers?
...u're doing things you didn't mean to do. Imagine the following typo:
void foo(int* ptr)
{
ptr = 0;// oops, I meant *ptr = 0
}
If you use int* const, this would generate a compiler error because you're changing the value to ptr. Adding restrictions via syntax is a good thing in general. Just d...
When vectors are allocated, do they use memory on the heap or the stack?
... community wiki
2 revsFred Foo
3
...
What's the difference between an element and a node in XML?
...rt of the DOM tree, an Element is a particular type of Node
e.g.
<foo> This is Text </foo>
You have a foo Element, (which is also a Node, as Element inherits from Node) and a Text Node 'This is Text', that is a child of the foo Element/Node
...
What does a double * (splat) operator do
... arguments. It returns a Hash with key / value pairs.
For this code:
def foo(a, *b, **c)
[a, b, c]
end
Here's a demo:
> foo 10
=> [10, [], {}]
> foo 10, 20, 30
=> [10, [20, 30], {}]
> foo 10, 20, 30, d: 40, e: 50
=> [10, [20, 30], {:d=>40, :e=>50}]
> foo 10, d: 40, ...
Using boolean values in C
... should generally be avoided. Consider a function defined like this
void foo(bool option) { ... }
Within the body of the function, it is very clear what the argument means since it has a convenient, and hopefully meaningful, name. But, the call sites look like
foo(TRUE);
foo(FALSE):
Here, it...