SDL_copysign

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

Header File

double SDL_copysign(double x, double y);

x	floating point value to use as the magnitude
y	floating point value to use as the sign

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

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.

This function is available since SDL 3.0.0.