NAME¶

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

HEADER FILE¶

Defined in SDL3/SDL_stdinc.h

SYNOPSIS¶

#include "SDL3/SDL.h"

double SDL_copysign(double x, double y);

DESCRIPTION¶

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.

FUNCTION PARAMETERS¶

x

floating point value to use as the magnitude.

y

floating point value to use as the sign.

RETURN VALUE¶

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

THREAD SAFETY¶

It is safe to call this function from any thread.

AVAILABILITY¶

This function is available since SDL 3.1.3.

SEE ALSO¶

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