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What is the function of the push / pop instructions used on registers in x86 assembly?
...es. The general usage is
push eax ; preserve the value of eax
call some_method ; some method is called which will put return value in eax
mov edx, eax ; move the return value to edx
pop eax ; restore original eax
A push is a single instruction in x86, which do...
Calling a method every x minutes
...gives a compile error. TotalMilliseconds returns a double while the timer expects integers or TimeSpan. I tried to update your answer to one that employs TimeSpan and throws out unnecessary bloat; however, you reverted it.
– André C. Andersen
Feb 5 '14 at 23:0...
Where to place JavaScript in an HTML file?
...ts.
Of course Levi's comment "just before you need it and no sooner" is really the correct answer, i.e. "it depends".
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Why cast unused return values to void?
...nce using the full static cast notation just feels like overkill here. Finally, if you're reviewing a coding standard or writing one, then it's also a good idea to explicitly state that calls to overloaded operators (not using function call notation) should be exempt from this too:
class A {};
A o...
Rails 3.1: Engine vs. Mountable App
...s, someone please let me know and I'll fix this response. I have made a small article about the subject here Cheers!
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Understanding REST: Verbs, error codes, and authentication
... complete with their member URIs for further navigation. For example, list all the cars for sale.
PUT: Meaning defined as "replace the entire collection with another collection".
POST: Create a new entry in the collection where the ID is assigned automatically by the collection. The ID created is us...
How to convert std::string to lower case?
...a.begin(),
[](unsigned char c){ return std::tolower(c); });
You're really not going to get away without iterating through each character. There's no way to know whether the character is lowercase or uppercase otherwise.
If you really hate tolower(), here's a specialized ASCII-only alternative...
Determine the data types of a data frame's columns
...ation as a vector (i.e. you don't need it to do something else programmatically later), just use str(foo).
In both cases foo would be replaced with the name of your data frame.
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How to initialize/instantiate a custom UIView class with a XIB file in Swift
I have a class called MyClass which is a subclass of UIView , that I want to initialize with a XIB file. I am not sure how to initialize this class with the xib file called View.xib
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Facebook Graph API, how to get users email?
...ress is to request extended permissions on the email field. The user must allow you to see this and you cannot get the e-mail addresses of the user's friends.
http://developers.facebook.com/docs/authentication/permissions
You can do this if you are using Facebook connect by passing scope=email in...