Report if a character is lower case.
Defined in <SDL3/SDL_stdinc.h>
int SDL_islower(int x);
int | x | character value to check. |
(int) Returns non-zero if x falls within the character class, zero otherwise.
WARNING: Regardless of system locale, this will only treat ASCII values 'a' through 'z' as true.
It is safe to call this function from any thread.
This function is available since SDL 3.1.3.