table of contents
SDL_scalbnf(3) | SDL3 FUNCTIONS | SDL_scalbnf(3) |
NAME¶
SDL_scalbnf - Scale x by an integer power of two.
HEADER FILE¶
Defined in SDL3/SDL_stdinc.h
SYNOPSIS¶
#include "SDL3/SDL.h"
float SDL_scalbnf(float 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 single-precision floating point values, use
SDL_scalbn
for double-precision floats.
FUNCTION PARAMETERS¶
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_scalbn(3), •(3), SDL_powf(3)
SDL 3.1.6 | Simple Directmedia Layer |