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#ifndef _LINUX_CTYPE_H

#define _LINUX_CTYPE_H

#define _U      0x01    /* upper */

#define _L      0x02    /* lower */

#define _D      0x04    /* digit */

#define _C      0x08    /* cntrl */

#define _P      0x10    /* punct */

#define _S      0x20    /* white space (space/lf/tab) */

#define _X      0x40    /* hex digit */

#define _SP     0x80    /* hard space (0x20) */

extern unsigned char _ctype[];

extern char _ctmp;

#define isalnum(c) ((_ctype+1)[c]&(_U|_L|_D))

#define isalpha(c) ((_ctype+1)[c]&(_U|_L))

#define iscntrl(c) ((_ctype+1)[c]&(_C))

#define isdigit(c) ((_ctype+1)[c]&(_D))

#define isgraph(c) ((_ctype+1)[c]&(_P|_U|_L|_D))

#define islower(c) ((_ctype+1)[c]&(_L))

#define isprint(c) ((_ctype+1)[c]&(_P|_U|_L|_D|_SP))

#define ispunct(c) ((_ctype+1)[c]&(_P))

#define isspace(c) ((_ctype+1)[c]&(_S))

#define isupper(c) ((_ctype+1)[c]&(_U))

#define isxdigit(c) ((_ctype+1)[c]&(_D|_X))

#define isascii(c) (((unsigned) c)<=0x7f)

#define toascii(c) (((unsigned) c)&0x7f)

#define tolower(c) (_ctmp=c,isupper(_ctmp)?_ctmp-('A'-'a'):_ctmp)

#define toupper(c) (_ctmp=c,islower(_ctmp)?_ctmp-('a'-'A'):_ctmp)

#endif