NAME

       SDL_isalpha - Query if a character is alphabetic (a letter).

SYNOPSIS

       #include <SDL3/SDL_stdinc.h>

       int SDL_isalpha(int x);

DESCRIPTION

       WARNING:  Regardless  of  system locale, this will only treat ASCII values for English 'a-z' and 'A-Z' 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.

Simple Directmedia Layer                           SDL 3.2.20                                     SDL_isalpha(3)