NAME
SDL_isalnum - Query if a character is alphabetic (a letter) or a number.
HEADER FILE
Defined in SDL3/SDL_stdinc.h
SYNOPSIS
#include "SDL3/SDL.h"
int SDL_isalnum(int x);
DESCRIPTION
WARNING : Regardless of system locale, this will only treat ASCII values for English 'a-z', 'A-Z', and '0-9' as true.
FUNCTION PARAMETERS
- x
-
character value to check.
RETURN VALUE
Returns non-zero if x falls within the character class, zero otherwise.
THREAD SAFETY
It is safe to call this function from any thread.
AVAILABILITY
This function is available since SDL 3.2.0.