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A semantics for Bash scripts?
More than any other language I know, I've "learned" Bash by Googling every time I need some little thing. Consequently, I can patchwork together little scripts that appear to work. However, I don't really know what's going on, and I was hoping for a more formal introduction to Bash as a programmin...
How to draw a path on a map using kml file?
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What kinds of patterns could I enforce on the code to make it easier to translate to another program
..." language definition (including the one we painfully built for PHP), much more for nasty languages such as C++. It will be a "hell of a learning experience"; it has been for us. (You might find the technical Papers section at the above website interesting to jump start that learning).
People oft...
Create an index on a huge MySQL production table without table locking
...ETE statement on the table.
and:
In MySQL 5.6, this feature becomes more general: you can read and write to tables while an index is being created, and many more kinds of ALTER TABLE operations can be performed without copying the table, without blocking DML operations, or both. Thus in MySQL...
Fastest way to determine if an integer's square root is an integer
...squares. However, in my experience, calling the modulo operator (%) costs more than the benefit one gets, so I use bit tricks involving 255 = 2^8-1 to compute the residue. (For better or worse, I am not using the trick of reading individual bytes out of a word, only bitwise-and and shifts.)
int64 ...
Sorting 1 million 8-decimal-digit numbers with 1 MB of RAM
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Why do we need private subnet in VPC?
...n be provisioned, instead. An expanded version of this answer integrating more information about NAT Gateway and how it compares to a NAT instance will be forthcoming, as these are both relevant to the private/public subnet paradigm in VPC.
Note that the Internet Gateway and NAT Gateway are two di...
What are the differences between Generics in C# and Java… and Templates in C++? [closed]
.... It's still dealing with the same old ArrayList as it always has. This is more important in the java world because they wanted to support compiling code using Java 5 with generics, and having it run on old 1.4 or previous JVM's, which microsoft deliberately decided not to bother with.
The downside ...
My Understanding of HTTP Polling, Long Polling, HTTP Streaming and WebSockets
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There are more differences than the ones you have identified.
Duplex/directional:
Uni-directional: HTTP poll, long poll, streaming.
Bi-direcitonal: WebSockets, plugin networking
In order of increasing latency (approximate):
WebS...
Is MATLAB OOP slow or am I doing something wrong?
...per se - MATLAB has a JIT - but MATLAB's looser typing and syntax may mean more work at run time. (E.g. you can't tell from syntax alone whether "f(x)" is a function call or an index into an array; it depends on the state of the workspace at run time.) It may be because MATLAB's class definitions ar...