#ifndef __CTYPE_H__
#define __CTYPE_H__

int isprint(int c);
int isalpha(int c);
int isdigit(int c);
int isxdigit(int c);
int isspace(int c);
int islower(int c);
int isupper(int c);

int tolower(int c);
int toupper(int c);

#endif /*__CTYPE_H__*/
