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What are the differences between Clojure, Scheme/Racket and Common Lisp?
... Scheme :)
In fact allot of software some folks think might be written in C++ was probably done under the Lisp umbrella, its hard to pick out the golden apples out of the bunch. The fact is C++ was not always popular, it only seems to be popular today because of a history of updates. For the lesser...
How does BLAS get such extreme performance?
... block.
For purely numerical tasks, Fortran is pretty much unbeatable, and C++ takes a lot of coaxing to get up to a similar speed. It can be done, and there are a few libraries demonstrating it (typically using expression templates), but it's not trivial, and it doesn't just happen.
...
Why would I ever use push_back instead of emplace_back?
C++11 vectors have the new function emplace_back . Unlike push_back , which relies on compiler optimizations to avoid copies, emplace_back uses perfect forwarding to send the arguments directly to the constructor to create an object in-place. It seems to me that emplace_back does everything p...
Bootstrapping still requires outside support
...g language to write your new compiler in. If you were writing a new, say, C++ compiler, you would just write it in C++ and compile it with an existing compiler first. On the other hand, if you were creating a compiler for a new language, let's call it Yazzleof, you would need to write the new comp...
Can I set enum start value in Java?
...
Java enums are not like C or C++ enums, which are really just labels for integers.
Java enums are implemented more like classes - and they can even have multiple attributes.
public enum Ids {
OPEN(100), CLOSE(200);
private final int id;
Id...
What is exactly the base pointer and stack pointer? To what do they point?
...out Windows programs, you might probably use Visual Studio to compile your C++ code. Be aware that Microsoft uses an optimization called Frame Pointer Omission, that makes it nearly impossible to do walk the stack without using the dbghlp library and the PDB file for the executable.
This Frame Poin...
Kill process by name?
...stall psutil" failed on my machine, saying that I needed to install Visual C++ 9.0. Screw that! I'd much rather install Cygwin or Msys.
– Andrew Bainbridge
Apr 4 '16 at 16:54
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Why does an overridden function in the derived class hide other overloads of the base class?
...e rationale behind the name hiding, i.e. why it actually was designed into C++, is to avoid certain counterintuitive, unforeseen and potentially dangerous behavior that might take place if the inherited set of overloaded functions were allowed to mix with the current set of overloads in the given cl...
How to erase the file contents of text file in Python?
...e:
f = open('file.txt', 'r+')
f.truncate(0) # need '0' when using r+
In C++, you could use something similar.
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How to determine the Boost version on a system?
Is there a quick way to determine the version of the Boost C++ libraries on a system?
11 Answers
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