Andre Weissflog

https://mastodon.gamedev.place/@floooh

https://twitter.com/FlohOfWoe
https://github.com/floooh/

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Last Notes

2024-06-08 10:09:59

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just std::vector alone pulls in nearly 25kloc into each compilation unit for no good reason:
https://www.godbolt.org/z/T33jWsM6q
For reference, that's more than an entire 3D API wrapper that covers D3D11, Metal and GL:
https://github.com/floooh/sokol/blob/master/sokol_gfx.h

2024-06-08 10:04:16

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for containers I would definitely write my own highly specialized classes in perf-critical code bases. Since the requirements are much more focused those can be done in a couple of hundred lines instead of tens of thousands like the stdlib containers.

2024-06-08 10:02:09

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I think the Orthodox C++ advice of "don't use anything from the STL that allocates memory" makes sense for perf-critical code bases: https://gist.github.com/bkaradzic/2e39896bc7d8c34e042b
For the rare case where I use C++ for cmdline tools I'm more "open" (e.g. in sokol-shdc I use std::vector and std::string together with pystring and libfmt) but that's about as far as I would go.