nativelibc/include/ctype.h

/*	A part of the Native C Library for Windows NT
	Copyright 2007-2015 PC GO Ld.
	Copyright 2026 Rivoreo

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or (at
	your option) any later version.

	This program is distributed in the hope that it will be useful, but
	WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
	General Public License for more details.
*/

#ifndef _CTYPE_H
#define _CTYPE_H

#define _CTYPE_ALPHA 0x00000100
#define _CTYPE_CNTRL 0x00000200
#define _CTYPE_DIGIT 0x00000400
#define _CTYPE_GRAPH 0x00000800
#define _CTYPE_LOWER 0x00001000
#define _CTYPE_PUNCT 0x00002000
#define _CTYPE_SPACE 0x00004000
#define _CTYPE_UPPER 0x00008000
#define _CTYPE_XDIGIT 0x00010000
#define _CTYPE_BLANK 0x00020000
#define _CTYPE_PRINT 0x00040000

#ifdef __cplusplus
extern "C" {
#endif

int __isctype(int, unsigned int);

int isalnum(int);
int isalpha(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 tolower(int);
int toupper(int);

#if !defined __NO_CTYPE && !defined __cplusplus
# define isalnum(c)	__isctype((c), _CTYPE_ALPHA | _CTYPE_DIGIT)
# define isalpha(c)	__isctype((c), _CTYPE_ALPHA)
# define isblank(c)	__isctype((c), _CTYPE_BLANK)
# define iscntrl(c)	__isctype((c), _CTYPE_CNTRL)
# define isdigit(c)	__isctype((c), _CTYPE_DIGIT)
# define islower(c)	__isctype((c), _CTYPE_LOWER)
# define isgraph(c)	__isctype((c), _CTYPE_GRAPH)
# define isprint(c)	__isctype((c), _CTYPE_PRINT)
# define ispunct(c)	__isctype((c), _CTYPE_PUNCT)
# define isspace(c)	__isctype((c), _CTYPE_SPACE)
# define isupper(c)	__isctype((c), _CTYPE_UPPER)
# define isxdigit(c)	__isctype((c), _CTYPE_XDIGIT)
# define isascii(c)	(((c) & ~0x7f) == 0)
# define toascii(c)	((c) & ~0x7f)
#endif

#ifdef __cplusplus
}
#endif

#endif