haiku/headers/posix/ctype.h

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#ifndef _CTYPE_H
#define _CTYPE_H
/*
** Distributed under the terms of the OpenBeOS License.
*/
#ifdef __cplusplus
extern "C" {
#endif
int isalnum(int);
int isalpha(int);
int isascii(int);
int isblank(int);
int iscntrl(int);
int isdigit(int);
int isgraph(int);
int islower(int);
int isprint(int);
int ispunct(int);
int isspace(int);
int isupper(int);
int isxdigit(int);
int toascii(int);
int tolower(int);
int toupper(int);
enum {
_ISblank = 0x0001, /* blank */
_IScntrl = 0x0002, /* control */
_ISpunct = 0x0004, /* punctuation */
_ISalnum = 0x0008, /* alpha-numeric */
_ISupper = 0x0100, /* uppercase */
_ISlower = 0x0200, /* lowercase */
_ISalpha = 0x0400, /* alphabetic */
_ISdigit = 0x0800, /* digit */
_ISxdigit = 0x1000, /* hexadecimal digit */
_ISspace = 0x2000, /* white space */
_ISprint = 0x4000, /* printing */
_ISgraph = 0x8000, /* graphical */
};
/* Characteristics */
extern const unsigned short int *__ctype_b;
/* Case conversions */
extern const int *__ctype_tolower;
extern const int *__ctype_toupper;
#define __isctype(c, type) \
(__ctype_b[(int)(c)] & (unsigned short int)type)
#define isascii(c) (((c) & ~0x7f) == 0) /* ASCII characters have bit 8 cleared */
#define toascii(c) ((c) & 0x7f) /* Clear higher bits */
#define tolower(c) ((int)__ctype_tolower[(int)(c)])
#define toupper(c) ((int)__ctype_toupper[(int)(c)])
#define isalnum(c) __isctype((c), _ISalnum)
#define isalpha(c) __isctype((c), _ISalpha)
#define isblank(c) __isctype((c), _ISblank)
#define iscntrl(c) __isctype((c), _IScntrl)
#define isdigit(c) __isctype((c), _ISdigit)
#define islower(c) __isctype((c), _ISlower)
#define isgraph(c) __isctype((c), _ISgraph)
#define isprint(c) __isctype((c), _ISprint)
#define ispunct(c) __isctype((c), _ISpunct)
#define isspace(c) __isctype((c), _ISspace)
#define isupper(c) __isctype((c), _ISupper)
#define isxdigit(c) __isctype((c), _ISxdigit)
#ifdef __cplusplus
}
#endif
#endif // _CTYPE_H