Why did IEEE specify sqrt(-0) to be -0?! That's … surprising when applied to the interpretation of -0 in the context of complex numbers:
sqrt(complex{-0,+0}) is complex{+0,+0}.
And also pow(-0, 0.5) is +0.
If anything sqrt(-0) should be NaN, but why -0?

#floatingpoint #iec60559 #ieee754 #CPlusPlus #C#cpp

I added hot reloading of C++ gameplay code to my game :D

This is possible because "engine" code and "gameplay" code is split into different shared libraries. So when you hit F5, it compiles a new shared library for the gameplay code and loads the new one (as well as reloading all the assets etc).

#cplusplus#gamedev #programming

I was able to use precompiled headers to significantly speed up recompilation! A full rebuild of all the gameplay code used to take 4.5 seconds, on my laptop. Now that I made it pre-compile the engine headers, it does it in 1.6 seconds.

I've tried precompiled headers before and struggled to get real speed-up, but I guess this is literally the perfect case for it; every gameplay source code is gonna include the exact same engine library header 😊 #cplusplus#cpp