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How does the main() method work in C?
...c_from_somewhere, argv_from_somewhere, envp_from_somewhere));
}
In other words, this start module just calls a three-argument main, always. If main takes no arguments, or only int, char **, it happens to work fine, as well as if it takes no arguments, due to the calling conventions.
If you were t...
iOS app error - Can't add self as subview
... the relevant nav controller, and include it in the call to push/pop.
The word "lock" may be slightly poor wording as it may insinuate there's some form of lock happening that needs unlocking, but since there's no "unlock" method anywhere, it's probably okay.
(As a sidenote, "non user related dela...
How to understand Locality Sensitive Hashing?
.../09/08/storm-first-story-detection/
And because one picture is a thousand words check the picture below:
http://micvog.files.wordpress.com/2013/08/lsh1.png
Hope it helps.
@mvogiatzis
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Does Python optimize tail recursion?
...to have proper tracebacks:
Tail Recursion Elimination (2009-04-22)
Final Words on Tail Calls (2009-04-27)
You can manually eliminate the recursion with a transformation like this:
>>> def trisum(n, csum):
... while True: # Change recursion to a while loop
... ...
What is a proper naming convention for MySQL FKs?
...e time helping you avoid name collisions/confusion when there are multiple word table names. I also omit the field part of the name when it is trivial (i.e. a single int field references the identity PK of another table).
– Joel Brown
Sep 12 '11 at 1:20
...
What's the difference between HEAD, working tree and index, in Git?
... ever understand it completely I got really frustrated n I wanna use the f word; But im in community! U've mentioned heads but in the images above there is always a single HEAD where r the remaining f**ng heads? "Normally HEAD points to one of the heads, so everything works out just fine." I beg u t...
Differences between Agda and Idris
...sitional equality is heterogeneous, while Agda's is homogeneous.
In other words, the putative definition of equality in Idris would be:
data (=) : {a, b : Type} -> a -> b -> Type where
refl : x = x
while in Agda, it is
data _≡_ {l} {A : Set l} (x : A) : A → Set a where
refl :...
Determining type of an object in ruby
... to respond to particular methods, commonly called "Duck typing". In other words, if it responds to the methods you want, there's no reason to be particular about the type.
For example, object.is_a?(String) is too rigid since another class might implement methods that convert it into a string, or m...
Python : List of dict, if exists increment a dict value, if not append a new dict
...
Except for the first time, each time a word is seen the if statement's test fails. If you are counting a large number of words, many will probably occur multiple times. In a situation where the initialization of a value is only going to occur once and the augmenta...
What are the downsides to using Dependency Injection? [closed]
...hey mean, and work out what to do for their application. This is where the words "sensible defaults" can make life much simpler.
Object-oriented dependency injection is no different in principle. Writing a class is an overhead, both in source-code text and in developer time, and if that class is wr...