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#ifndef CTYPE_H

#define CTYPE_H

int isspace(char ch);

int isxdigit(char ch);

int isdigit(char ch);

int isalpha(char ch);

int isupper(char ch);

int islower(char ch);

int ispunct(char ch);

int isalnum(char ch);

int isgraph(char ch);

int isprint(char ch);

int iscntrl(char ch);

int tolower(char ch);

int toupper(char ch);

#endif