SDL_TellIO - Determine the current read/write offset in an SDL_IOStream

       This function is available since SDL 3.2.0.

SDL_TellIO
        is actually a wrapper function that calls the

       SDL_IOStreamseek  method,  with  an  offset  of  0 bytes from SDL_IO_SEEK_CUR , to simplify application
       development.

context
              an SDL_IOStream
               data stream object from which to get the current offset.

       Defined in SDL3/SDL_iostream.h

       SDL_TellIO - Determine the current read/write offset in an SDL_IOStream
        data stream.

       ( Sint64 ) Returns the current offset in the stream, or -1 if the information can not be determined.

•(3), SDL_SeekIO(3)

Simple Directmedia Layer                           SDL 3.2.10                                      SDL_TellIO(3)

#include"SDL3/SDL.h"Sint64SDL_TellIO(SDL_IOStream*context);

       This function is not thread safe.