IT Hare on Soft.ware
If you're in trouble and cannot find an answer to a question which goes beyond Stack Overflow...
If you have a not-so-usual solution for your problems but need to justify it to your boss...
If you like to think on your own rather than blindly follow "common wisdom" and "profound truth"...
...then 'No Bugs' Hare on Soft.ware might be the right place for you.
Your mileage may vary. Batteries not included

Assorted Rants Tagged ‘C/C++’, page 7:

Implementing Queues for Event-Driven Programs

posted by

Quote: “full queues SHOULD NOT happen during normal operation”
Another Quote: “With queues-implemented-over-mutexes like the ones we’ve written above, the most annoying thing performance-wise is that there is a chance that the OS’s scheduler can force the preemptive context switch right when the thread-being-preempted-is-owning-our-mutex.”
[→]

C++ Guidelines – Made-to-Measure vs One-Size-Fits-All

posted by

Abstract: “After bashing all those Big Name guys for making those over-arching sets of guidelines, it is perfectly logical for me myself to do the same 😉”
Quote: “DON’T use C-style cast, EVER. If you DO need a cast – DO spend time on figuring out which of C++ *_cast<>s you really mean (and maybe, you’ll find a way to avoid that cast at all)”
[→]

C++ Performance: Common Wisdoms and Common “Wisdoms”

posted by

Quote: “over(ab)using C++ features is a different story, we’ll discuss these features below on case-by-case basis”
Another Quote: “Compiler will use all its Next-to-Divine Wisdom to show you that it is smarter than you are, and to ignore most of those inline specifications you carefully wrote.”
[→]

C++ for Games: Performance. Allocations and Data Locality

posted by

Abstract: “Allocations and related lack of spatial locality can be DAMN EXPENSIVE”
Quote: “During the times of Ancient Gamers (also known as times of Atari, ZX Spectrum, and Commodore64), CPUs were running at clock speed of a single-MHz (and one operation usually took several clocks). At the same time, memory run at about the speed comparable to that of CPUs.”
[→]

If they wrote it in a book, it MUST BE GOOD CODE!
Or
How many mistakes can fit into 100 lines of book tutorial code? Part 2

posted by

Abstract: There are books and there are books. Some of the books can be trusted. Some are to be avoided.
Quote: “While the detection of pointer parameter being NULL is almost universally a good idea, having it silently ignored might lead to difficult-to-find bugs.”
[→]

If they wrote it in a book, it MUST BE GOOD CODE!
Or
How many mistakes can fit into 100 lines of book tutorial code. Part 1

posted by

Quote: “Throwing away 1400 bytes for no reason for every single network message is an outrageous waste”
Another Quote: “Having this kind of stuff in your code is like having a time bomb: it will explode, and for any sizeable project if will usually happen sooner rather than later (unless, of course, “later” is the worst possible time for the explosion to happen)”
[→]
Copyright © 2014-2016 ITHare.com