SDL_TLSID - Thread local storage ID.

       This datatype is available since SDL 3.2.0.

       0  is  the  invalid  ID.  An  app can create these and then set data for these IDs that is unique to each
       thread.

       SDL_TLSID - Thread local storage ID.

SDL_GetTLS(3), SDL_SetTLS(3)

Simple Directmedia Layer                           SDL 3.2.20                                   SDL_TLSID(3type)

#include<SDL3/SDL_thread.h>typedefSDL_AtomicIntSDL_TLSID;