DOKK / manpages / debian 13 / libsdl3-doc / SDL_islower.3.en
SDL_islower(3) SDL3 FUNCTIONS SDL_islower(3)

SDL_islower - Report if a character is lower case.

Defined in SDL3/SDL_stdinc.h

#include "SDL3/SDL.h"
int SDL_islower(int x);

WARNING : Regardless of system locale, this will only treat ASCII values

character value to check.

Returns non-zero if x falls within the character class, zero otherwise.

It is safe to call this function from any thread.

This function is available since SDL 3.2.0.

SDL 3.2.10 Simple Directmedia Layer