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How do emulators work and how are they written? [closed]
How do emulators work? When I see NES/SNES or C64 emulators, it astounds me.
16 Answers
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When is an interface with a default method initialized?
...1
j=3
jj=4
3
and indeed I get the expected output. However, if a default method is added to interface I,
interface I {
int i = 1, ii = Test.out("ii", 2);
default void method() { } // causes initialization!
}
the output changes to:
1
ii=2
j=3
jj=4
3
which clearly indicates that interf...
How to find out client ID of component for ajax update/render? Cannot find component with expression
The following code is inspired from PrimeFaces DataGrid + DataTable Tutorials and put into a <p:tab> of a <p:tabView> residing in a <p:layoutUnit> of a <p:layout> . Here is the inner part of the code (starting from p:tab component); the outer part is trivial.
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SHA1 vs md5 vs SHA256: which to use for a PHP login?
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Neither. You should use bcrypt. The hashes you mention are all optimized to be quick and easy on hardware, and so cracking them share the same qualities. If you have no other choice, at least be sure to use a long salt and re-hash multiple times.
Using bcrypt in PHP 5.5+...
Integrating the ZXing library directly into my Android application
I'm writing this in mere desperation :) I've been assigned to make a standalone barcode scanner (as a proof of concept) to an Android 1.6 phone.
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What is uint_fast32_t and why should it be used instead of the regular int and uint32_t?
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int may be as small as 16 bits on some platforms. It may not be sufficient for your application.
uint32_t is not guaranteed to exist. It's an optional typedef that the implementation must provide iff it has an unsigned integer type of exactly 32-bits. Some have...
When should I use OWIN Katana?
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In asp.net WebApi v2, the OWIN pipeline becomes the default. It is eventually going to be the standard pipeline under any asp.net project.
I cannot put it better than what is written here : http://www.asp.net/aspnet/overview/owin-and-katana/an-overview-of-project-kata...
What does 'COLLATE SQL_Latin1_General_CP1_CI_AS' do?
...ifference between this and SQL_Latin1_General_CI_AS. Specifically, CP1 got me wondering.
– Kad
Jan 20 '14 at 23:42
7
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Volatile vs. Interlocked vs. lock
...unter field that is accessed by multiple threads. This int is only incremented or decremented.
9 Answers
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How do you validate a URL with a regular expression in Python?
...e (py2, py3) module.
A regex is too much work.
There's no "validate" method because almost anything is a valid URL. There are some punctuation rules for splitting it up. Absent any punctuation, you still have a valid URL.
Check the RFC carefully and see if you can construct an "invalid" URL...