SDL_scalbn3
Scale x by an integer power of two.
Usage
#include "SDL3/SDL.h"
double SDL_scalbn(double x, int n);
Header file
Defined in SDL3/SDL_stdinc.h
Overview
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.