SDL_copysign(3)

✨ SDL_copysign ✨

okay bestie, welcome to the SDL_copysign page from the SDL3 functions lineup 💖 she's a lil math baddie and she's about to steal a sign from one number and hand it to another. no cap.

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🌸 NAME 🌸

SDL_copysign — copy the sign of one floating-point value onto another. it's giving "your vibe, my magnitude" 💅

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🎀 SYNOPSIS 🎀

#include <SDL3/SDL_stdinc.h>

double SDL_copysign(double x, double y);

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🦋 DESCRIPTION 🦋

so here's the whole deal, fr fr. the definition of copysign is literally:

copysign(x, y) = abs(x) * sign(y)

like, you take the size of x and the mood of y and you smash them together into one iconic little number ✨

Domain: -INF <= x <= INF,

-INF <= y <= f

Range: -INF <= z <= INF

not me just copying that f verbatim because it's what the original says 🙈 no thoughts, head empty, facts preserved.

this function is strictly for double-precision floating point values, okay? if you're on that single-precision float grind, you want SDL_copysignf instead. know the difference, it's important 👑

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💖 FUNCTION PARAMETERS 💖

• x — floating point value to use as the magnitude. this one brings the size 🫶
• y — floating point value to use as the sign. this one brings the attitude 😌

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⭐ RETURN VALUE ⭐

returns the floating point value with the sign of y and the magnitude of x. so like, x's body, y's energy. main character collab 🔥

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🌈 THREAD SAFETY 🌈

it is safe to call this function from any thread. go off, multi-threaded queen 👑

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🍓 AVAILABILITY 🍓

this function is available since SDL 3.2.0. she's not ancient, she's fresh 💅

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🧚 SEE ALSO 🧚

• SDL_copysignf(3)
• SDL_fabs(3)

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and that's the whole page, bestie!! 💜 written by the lovely humans at Simple Directmedia Layer, this is SDL 3.4.18, and yeah, the page is literally named SDL_copysign(3) in case you forgot where you were 🌸 mwah, go copy some signs 🎀✨