SDL_strupr - Convert a string to uppercase.

       This function is available since SDL 3.2.0.

WARNING : Regardless of system locale, this will only convert ASCII values 'A' through 'Z' to uppercase.

       This function operates on a null-terminated string of bytes--even if it is malformed UTF-8!--and converts
       ASCII  characters  'a'  through  'z'  to their uppercase equivalents in-place, returning the original str
       pointer.

str    the string to convert in-place. Can not be NULL.

       Defined in SDL3/SDL_stdinc.h

       SDL_strupr - Convert a string to uppercase.

       Returns the str pointer passed into this function.

•(3), SDL_strlwr(3)

Simple Directmedia Layer                           SDL 3.2.10                                      SDL_strupr(3)

#include"SDL3/SDL.h"char*SDL_strupr(char*str);

       It is safe to call this function from any thread.