SDL_isalnum3
Query if a character is alphabetic (a letter) or a number.
Usage
#include "SDL3/SDL.h"
int SDL_isalnum(int x);
Header file
Defined in SDL3/SDL_stdinc.h
Overview
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.