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Efficiency of premature return in a function
... of mine I'm trying to optimize. For the major C-like languages (C, objC, C++, Java, C#, etc) and their usual compilers, will these two functions run just as efficiently? Is there any difference in the compiled code?
...
How the single threaded non blocking IO model works in Node.js
...lar fashion. The internal thread architecture is something like this:
The C++ threads are the libuv ones which do the asynchronous I/O (disk or network). The main event loop continues to execute after the dispatching the request to thread pool. It can accept more requests as it does not wait or sle...
What are the downsides to using Dependency Injection? [closed]
...show the potential problems.
Lets take this simple traditional function - C++ syntax isn't significant here, but I have to spell it somehow...
void Say_Hello_World ()
{
std::cout << "Hello World" << std::endl;
}
I have a dependency I want to extract out and inject - the text "Hello...
What's the point of having pointers in Go?
... *b
*b = temp
}
Conclusion
Java has never been able to fully replace C++ for systems programming at places such as Google, in part because performance can not be tuned to the same extend due to the lack of ability to control memory layout and usage (cache misses affect performance significantl...
Why use non-member begin and end functions in C++11?
...gin and end method for returning iterators for that container. However, C++11 has apparently introduced free functions called std::begin and std::end which call the begin and end member functions. So, instead of writing
...
Why is Go so slow (compared to Java)?
...its the closest thing to the simplicity of Python with speed between C and C++
– jdi
Apr 9 '13 at 22:01
5
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Virtual/pure virtual explained
...tual function
...
In object-oriented programming, in languages such as C++, and Object Pascal, a virtual function or virtual method is an inheritable and overridable function or method for which dynamic dispatch is facilitated. This concept is an important part of the (runtime) polymorphism port...
When should the volatile keyword be used in C#?
...
This is C++ but the principle applies to C#.
– Skizz
Sep 16 '08 at 15:09
6
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Is the order of iterating through std::map known (and guaranteed by the standard)?
...
This is guaranteed by Associative container requirements in the C++ standard. E.g. see 23.2.4/10 in C++11:
The fundamental property of iterators of associative containers is that they
iterate through the containers in the non-descending order of keys where
non-descending is defined by t...
In C++, what is a “namespace alias”?
What is a "namespace alias" in C++? How is it used?
5 Answers
5
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