#pragma once
#include "../std.h"

static inline bool isAlphabeticalLower(char c) { return 'a' <= c && c <= 'z'; }
static inline bool isAlphabeticalUpper(char c) { return 'A' <= c && c <= 'Z'; }
static inline bool isDigit(char c) { return '0' <= c && c <= '9'; }