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What does addChildViewController actually do?
...oes very little. The side effects of the call are the important part. They come from the parentViewController and childViewControllers relationships. Here are some of the side effects that I know:
Forwarding appearance methods to child view controllers
Forwarding rotation methods
(Possibly) forwar...
Is MATLAB OOP slow or am I doing something wrong?
...functions and methods. Here are some typical results.
>> call_nops
Computer: PCWIN Release: 2009b
Calling each function/method 100000 times
nop() function: 0.02261 sec 0.23 usec per call
nop1-5() functions: 0.02182 sec 0.22 usec per call
nop() subfunction: ...
Joda-Time: what's the difference between Period, Interval and Duration?
...r the job rather than of relative performance. From the documentation with comments added by me in italics:
An interval in Joda-Time represents an interval of time from one millisecond instant to another instant. Both instants are fully specified instants in the datetime continuum, complete with ...
Can someone explain collection_select to me in clear, simple terms?
...
This is easily, one of the best explanations of a complex Rails structure I have seen. You used clear language, along with basic Rails constructs to solidify it. Thanks much!!
– marcamillion
Jan 19 '12 at 8:32
...
Why sizeof int is wrong, while sizeof(int) is right?
...d be ill-formed ("no operator() for size_t"), which I expect would be unwelcome!
– Steve Jessop
Oct 30 '12 at 12:12
...
What are commit-ish and tree-ish in Git?
What are specific examples of commit-ish and tree-ish in Git?
2 Answers
2
...
What column type/length should I use for storing a Bcrypt hashed password in a Database?
...you use the 2a format, you’ll need 60 bytes. And thus for MySQL I’ll recommend to use the CHAR(60) BINARYor BINARY(60) (see The _bin and binary Collations for information about the difference).
CHAR is not binary safe and equality does not depend solely on the byte value but on the actual collat...
Static link of shared library function in gcc
.../forcing-static-linking-of-shared-libraries-696714/
http://linux.derkeiler.com/Newsgroups/comp.os.linux.development.apps/2004-05/0436.html
You need the static version of the library to link it.
A shared library is actually an executable in a special format
with entry points specified (and some stick...