#pragma once #include #pragma once #include int isalnum(int c); int isalpha(int c); int isdigit(int c); int islower(int c); int isprint(int c); int isgraph(int c); int iscntrl(int c); int isgraph(int c); int ispunct(int c); int isspace(int c); int isupper(int c); int isxdigit(int c); int isascii(int c); int tolower(int c); int toupper(int c); #define _U 01 #define _L 02 #define _N 04 #define _S 010 #define _P 020 #define _C 040 #define _X 0100 #define _B 0200 extern char _ctype_[256];