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In C++, is it still bad practice to return a vector from a function?
...o says nothing about v-tables, so you can't be sure that virtual function calls are efficient either. Essentially, you need to put some faith in the compiler at times.
– Peter Alexander
Jun 28 '10 at 23:04
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static constructors in C++? I need to initialize private static objects
... to have a class with a private static data member (a vector that contains all the characters a-z). In java or C#, I can just make a "static constructor" that will run before I make any instances of the class, and sets up the static data members of the class. It only gets run once (as the variables ...
Using sphinx with Markdown instead of RST
...on to choose the parser.) The beauty of this would be instant support for all docutils output formats (but you might not care about that, as similar markdown tools already exist for most). Ways to approach that without developing a parser from scratch:
You could cheat and write a "parser" that us...
GDB corrupted stack frame - How to debug?
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Those bogus adresses (0x00000002 and the like) are actually PC values, not SP values. Now, when you get this kind of SEGV, with a bogus (very small) PC address, 99% of the time it's due to calling through a bogus function pointer. Note that virtual calls in C++ are implemented ...
Why does a function with no parameters (compared to the actual function definition) compile?
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All the other answers are correct, but just for completion
A function is declared in the following manner:
return-type function-name(parameter-list,...) { body... }
return-type is the variable type that the funct...
jQuery vs jQuery Mobile vs jQuery UI?
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jQuery is a JavaScript framework designed to allow developers to literally "write less, do more", the 3 different flavours you are asking about, do very different things.
First up jQuery is the core library which contains the main functionality of the framework, so if...
Why use AJAX when WebSockets is available?
...s opens up new application domains to browser applications that were not really possible using HTTP and AJAX (interactive games, dynamic media streams, bridging to existing network protocols, etc).
However, there is certainly an overlap in purpose between WebSockets and AJAX/Comet. For example, whe...
What is a stack trace, and how can I use it to debug my application errors?
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In simple terms, a stack trace is a list of the method calls that the application was in the middle of when an Exception was thrown.
Simple Example
With the example given in the question, we can determine exactly where the exception was thrown in the application. Let's have a lo...
.NET Configuration (app.config/web.config/settings.settings)
...ration levels.)
These are the kinds of configuration elements that I typically store at the machine level:
Application settings
Connection strings
retail=true
Smtp settings
Health monitoring
Hosting environment
Machine key
When each environment (developer, integration, test, stage, live) has it...
ETag vs Header Expires
...er or not to make a request for that file again in the future. If ETag is all it has, it will always have to make a request. However, when the server reads the ETag from the client request, the server can then determine whether to send the file (HTTP 200) or tell the client to just use their local...