SDL_RESTRICT(3)

✨ SDL_RESTRICT ✨

ok bestie gather round, we're talking about SDL_RESTRICT from the SDL3 functions era 💅 this one's a macro, and it's lowkey one of those tiny things that makes compilers behave. come sit with me 🫶

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🌸 NAME 🌸

SDL_RESTRICT — a macro that tags a pointer variable, and its whole job is helping out with pointer aliasing. no cap.

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🎀 SYNOPSIS 🎀

#include <SDL3/SDL_begin_code.h>

#define SDL_RESTRICT __restrict

like, that's it. that's the whole thing. iconic minimalism honestly ✨

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🦋 DESCRIPTION 🦋

so restrict is a keyword, right, and if you want a genuinely good explanation of what it does, the original peeps point you here:

https://en.wikipedia.org/wiki/Restrict

go read it, it's giving "actually useful reference material" 💜

and here's the part where SDL is being a considerate bestie: on compilers that don't support restrict at all, SDL_RESTRICT is defined to nothing. so it just… vanishes. no error, no drama, no nothing. the code still compiles. periodt 🌈

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⭐ AVAILABILITY ⭐

this macro has been available since SDL 3.4.0. she's new-ish, she's cute, she's ready 🎀

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💖 reminder bestie: everything above is literally what it does, no more no less. the macro is the vibe, the vibe is the macro.

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mwah 💜 that's the whole page! sending you off with the classic sign-off: this beauty comes from Simple Directmedia Layer, sitting pretty at SDL 3.4.18 — go forth and tag your pointers, you absolute main character 👑✨