SDL_AssertionHandler(3type)

💖 SDL_AssertionHandler 💖

okay bestie, welcome to the SDL3 DATATYPES corner of the manual, where we're talking about SDL_AssertionHandler — and no, it's not a person who handles your drama, it's a callback that fires when an SDL assertion fails. iconic. 🎀

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✨ NAME ✨

SDL_AssertionHandler — a callback that fires when an SDL assertion fails. that's it, that's the vibe 🦋

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🌸 SYNOPSIS 🌸

#include <SDL3/SDL_assert.h>

typedef SDL_AssertState (SDLCALL *SDL_AssertionHandler)( const SDL_AssertData *data, void *userdata);

look at her. a function pointer typedef. she's serving and she knows it. 💅

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🫶 FUNCTION PARAMETERS 🫶

• data — a pointer to the SDL_AssertData structure that corresponds to the current assertion. this is the lil receipt for the assert that just went off, bestie. 🧾
• userdata — literally whatever you passed as userdata to SDL_SetAssertionHandler(). it comes right back to you, like a boomerang but make it C. 🪃

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⭐ RETURN VALUE ⭐

Returns an SDL_AssertState value indicating how to handle the failure. so you don't just get to panic — you get to choose, main character energy fr fr. 👑

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🌈 THREAD SAFETY 🌈

ngl this one's important: this callback may be called from any thread that triggers an assert at any time. any thread. any time. she does not do appointments, she does not do scheduled visits, she shows up whenever. 💀 keep that in mind when you're writing your handler, okay? no cap.

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💜 AVAILABILITY 💜

This datatype is available since SDL 3.2.0. so if you're on something older, sorry babe, she's not there yet. 🙈

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lowkey reminder: this is a typedef, not a function you call. you hand her to SDL_SetAssertionHandler() and she does the rest. ✨

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and that's the whole page, you ate it, you understood it, periodt. 💅

this lil love letter to function pointers comes to you from Simple Directmedia Layer, SDL 3.4.18, dated SDL_AssertionHandler(3type) — mwah, go forth and handle your assertions responsibly 🫶🌸