SDL_ReadS32LE(3)

💖 SDL_ReadS32LE 💖

okay bestie so we're in the SDL3 FUNCTIONS manual, and today's main character is SDL_ReadS32LE — she reads 32 bits of little-endian data out of an SDL_IOStream and hands it back to you in native format. iconic behavior honestly. 🎀

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✨ NAME ✨

SDL_ReadS32LE — use this function to read 32 bits of little-endian data from an SDL_IOStream and return in native format.

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🌸 SYNOPSIS 🌸

#include <SDL3/SDL_iostream.h>

bool SDL_ReadS32LE(SDL_IOStream *src, Sint32 *value);

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🦋 DESCRIPTION 🦋

ngl this one's pretty chill. SDL byteswaps the data only if necessary, so whatever you get back is already in the native byte order. no extra work on your end, she just handles it. 💅

Here's the part where you gotta pay attention though, fr fr:

• This function will return false when the data stream is completely read, and SDL_GetIOStatus() will return SDL_IO_STATUS_EOF.
• But if false comes back and the stream is not at EOF, then SDL_GetIOStatus() will return a different error value, and SDL_GetError() will offer you a human-readable message.

so like… false can mean two different things, and the way you tell them apart is by checking the status. don't skip that step bestie, it's giving "two truths, one false" 😭

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🫶 FUNCTION PARAMETERS 🫶

• src — the stream from which to read data. the source of truth, the one we're reading from. 📖
• value — a pointer filled in with the data read. you bring the pointer, she brings the bits. ✨

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⭐ RETURN VALUE ⭐

Returns true on a successful read, or false on failure — and when it's false, call SDL_GetError() for more info. she will literally tell you what went wrong. 🙈

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👑 THREAD SAFETY 👑

Do not use the same SDL_IOStream from two threads at once. like, at all. that's a one-stream-one-thread situation, no sharing, no cap. 💀

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🌈 AVAILABILITY 🌈

This function is available since SDL 3.2.0. so if you're on anything older… it's not there, bestie. 🎀

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and that's the whole page! 💜 this lil beauty comes to you from Simple Directmedia Layer, version SDL 3.4.18 — so when you're out here reading your little-endian 32-bit ints, just know she slayed. periodt. 💅✨🦋