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How can I add reflection to a C++ application?
...e it easier and cleaner to write it in the preprocessor we will use typed expression. A typed expression is just an expression that puts the type in parenthesis. So instead of writing int x you will write (int) x. Here are some handy macros to help with typed expressions:
#define REM(...) __VA_ARGS...
Switch on ranges of integers in JavaScript [duplicate]
...
Here is another way I figured it out:
const x = this.dealer;
switch (true) {
case (x < 5):
alert("less than five");
break;
case (x < 9):
alert("between 5 and 8");
break;
case (x < 12):
alert("between 9 and 11...
Algorithm to detect intersection of two rectangles?
...
The standard method would be to do the separating axis test (do a google search on that).
In short:
Two objects don't intersect if you can find a line that separates the two objects. e.g. the objects / all points of an object are on different sides of the line.
The fun t...
How do I get the coordinates of a mouse click on a canvas element?
... way to add a click event handler to a canvas element that will return the x and y coordinates of the click (relative to the canvas element)?
...
Proper MIME media type for PDF files
...th PDFs, I've run across the MIME types application/pdf and application/x-pdf among others.
3 Answers
...
What __init__ and self do on Python?
...
In this code:
class A(object):
def __init__(self):
self.x = 'Hello'
def method_a(self, foo):
print self.x + ' ' + foo
... the self variable represents the instance of the object itself. Most object-oriented languages pass this as a hidden parameter to the methods d...
Circle-Rectangle collision detection (intersection)
...oint in the circle.
Note that this does not require the rectangle to be axis-parallel.
(One way to see this: if none of the edges has a point in the circle (if all the edges are completely "outside" the circle), then the only way the circle can still intersect the polygon is if it lies complet...
HTTP POST and GET using cURL in Linux [duplicate]
...
*nix provides a nice little command which makes our lives a lot easier.
GET:
with JSON:
curl -i -H "Accept: application/json" -H "Content-Type: application/json" -X GET http://hostname/resource
with XML:
curl -H "Accept: a...
Why does C++ require a user-provided default constructor to default-construct a const object?
...a member M of T has a default member initializer or, if M is of class type X (or array thereof), X
is const-default-constructible,
if T is a union with at least one non-static data member, exactly one variant member has a default member initializer,
if T is not a union, for each anonymous unio...
Ignore mapping one property with Automapper
...
From Jimmy Bogard: CreateMap<Foo, Bar>().ForMember(x => x.Blarg, opt => opt.Ignore());
It's in one of the comments at his blog.
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