1 // SPDX-License-Identifier: BSD-2-Clause 2 /* 3 * Copyright (c) 2019, KAIST 4 */ 5 #include <ctype.h> 6 isalnum(int c)7 int isalnum(int c) 8 { 9 return isalpha(c) || isdigit(c); 10 } 11