SDL_copysign - Copy the sign of one floating-point value to another.

       This function is available since SDL 3.2.0.

       The definition of copysign is that copysign(x, y) = abs(x) * sign(y) .

       Domain:  -INF<=x<=INF  ,  -INF  <=  y <= f Range: -INF<=z<=INF This function operates on double-precision
       floating point values, use

       SDL_copysignf
        for single-precision floats.

x      floating point value to use as the magnitude.

       y      floating point value to use as the sign.

       Defined in SDL3/SDL_stdinc.h

       SDL_copysign - Copy the sign of one floating-point value to another.

       Returns the floating point value with the sign of y and the magnitude of x.

•(3), SDL_copysignf(3), •(3), SDL_fabs(3)

Simple Directmedia Layer                           SDL 3.2.10                                    SDL_copysign(3)

#include"SDL3/SDL.h"doubleSDL_copysign(doublex,doubley);

       It is safe to call this function from any thread.