NAME¶

SDL_scalbn - Scale x by an integer power of two.

HEADER FILE¶

Defined in SDL3/SDL_stdinc.h

SYNOPSIS¶

#include "SDL3/SDL.h"

double SDL_scalbn(double x, int n);

DESCRIPTION¶

Multiplies x by the n th power of the floating point radix (always 2).

Domain: -INF<=x<=INF , n integer

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

SDL_scalbnf
for single-precision floats.

FUNCTION PARAMETERS¶

x

floating point value to be scaled.

n

integer exponent.

RETURN VALUE¶

Returns x*2^n .

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_scalbnf(3), •(3), SDL_pow(3)