userland/libc/include/ctype.h


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#ifndef CTYPE_H
#define CTYPE_H

int isspace(int c);
int isascii(int c);
int toupper(int c);
int tolower(int c);
int isdigit(int c);
int isalpha(int c);
int isxdigit(int c);
int ispunct(int c);
int isalnum(int c);
int isprint(int c);
int isupper(int c);
int islower(int c);
int isgraph(int c);
int isblank(int c);
int iscntrl(int c);
#endif