#ifndef __CTYPE_H__
#define __CTYPE_H__

/*
UNG's Not GNU

MIT License

Copyright (c) 2011-2022 Jakob Kaivo <jkk@ung.org>

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/

/* TODO: full POSIX tests */

#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 19901L
#	if (defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 200112L)
#		error POSIX.1-2001 and later require a C99 compiler
#	elif (defined _XOPEN_SOURCE && _XOPEN_SOURCE >= 600)
#		error XOPEN Issue 6 and later require a C99 compiler
#	endif
#endif

#if	(defined _XOPEN_SOURCE)
#define _tolower(__c)                                               tolower(__c)
#define _toupper(__c)                                               toupper(__c)
#endif

int isalnum(int);
int isalpha(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 __STDC_VERSION__ && 199901L <= __STDC_VERSION__)
int isblank(int);
#endif

#if	(defined _XOPEN_SOURCE)
int isascii(int);
int toascii(int);
#endif

#if	(defined _POSIX_C_SOURCE && 200809L <= _POSIX_C_SOURCE)
/* from <locale.h> */
typedef int locale_t;

int isalnum_l(int, locale_t);
int isalpha_l(int, locale_t);
int isblank_l(int, locale_t);
int iscntrl_l(int, locale_t);
int isdigit_l(int, locale_t);
int isgraph_l(int, locale_t);
int islower_l(int, locale_t);
int isprint_l(int, locale_t);
int ispunct_l(int, locale_t);
int isspace_l(int, locale_t);
int isupper_l(int, locale_t);
int isxdigit_l(int, locale_t);
int tolower_l(int, locale_t);
int toupper_l(int, locale_t);
#endif

#endif