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How to invoke the super constructor in Python?
...mond-shaped inheritance very well, since you may end up calling the shared base class's initialiser twice.
Another way is to use super(), as others have shown. For single-inheritance, it does basically the same thing as letting you call the parent's initialiser.
However, super() is quite a bit mo...
embedding image in html email
...ple images at various locations in the email.
<img src="data:image/jpg;base64,{{base64-data-string here}}" />
And to make this post usefully for others to:
If you don't have a base64-data string, create one easily at:
http://www.motobit.com/util/base64-decoder-encoder.asp from a image file....
augmented reality framework [closed]
... I would also add that it depends if you want do do location based AR or vision based (e.g. marker based) AR. I would say that on android for vision based ar metaio.com/software/mobile-sdk is realy good and for location based you can also try droidar.googlecode.com or code.google.com/p...
What are Aggregates and PODs and how/why are they special?
... (12.1), no private or protected non-static data members (clause 11),
no base classes (clause 10), and no virtual functions (10.3).
So, OK, let's parse this definition. First of all, any array is an aggregate. A class can also be an aggregate if… wait! nothing is said about structs or unions, ...
Convert SVG image to PNG with PHP
...t involves a dynamically generated map of the US coloring different states based on a set of data.
8 Answers
...
C++ Exceptions questions on rethrow of original exception
...ou will lose derived-class-specific data during the copy-construction of a base class instance.
Simple program to illustrate what's happening:
#include <stdio.h>
struct MyErr {
MyErr() {
printf(" Base default constructor, this=%p\n", this);
}
MyErr(const MyErr& other) {
...
Format bytes to kilobytes, megabytes, gigabytes
Scenario: the size of various files are stored in a database as bytes. What's the best way to format this size info to kilobytes, megabytes and gigabytes? For instance I have an MP3 that Ubuntu displays as "5.2 MB (5445632 bytes)". How would I display this on a web page as "5.2 MB" AND have files le...
Why can't I have abstract static methods in C#?
...oment, inherit static methods. Imagine this scenario:
public static class Base
{
public static virtual int GetNumber() { return 5; }
}
public static class Child1 : Base
{
public static override int GetNumber() { return 1; }
}
public static class Child2 : Base
{
public static override ...
Best way to create unique token in Rails?
...when using Ruby 1.9 and ActiveRecord):
class ModelName < ActiveRecord::Base
before_create :generate_token
protected
def generate_token
self.token = loop do
random_token = SecureRandom.urlsafe_base64(nil, false)
break random_token unless ModelName.exists?(token: random_to...
ASP.Net MVC: How to display a byte array image from model
...
Something like this may work...
@{
var base64 = Convert.ToBase64String(Model.ByteArray);
var imgSrc = String.Format("data:image/gif;base64,{0}", base64);
}
<img src="@imgSrc" />
As mentioned in the comments below, please use the above armed with the k...