ft_isalpha - gabrielcoelhodacunha-old/42sp-libft GitHub Wiki
Description
Checks if c is an ASCII uppercase or lowercase alphabet letter.
Implementation
int ft_isalpha(int c)
{
return (ft_isupper(c) || ft_islower(c));
}
static int ft_isupper(int c)
{
return (c >= 'A' && c <= 'Z');
}
static int ft_islower(int c)
{
return (c >= 'a' && c <= 'z');
}