/* $OpenBSD: ctype.h,v 1.19 2005/12/13 00:35:22 millert Exp $ */
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/* $NetBSD: ctype.h,v 1.14 1994/10/26 00:55:47 cgd Exp $ */
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/*
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* Copyright (c) 1989 The Regents of the University of California.
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* All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)ctype.h 5.3 (Berkeley) 4/3/91
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*/
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#pragma once
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/**
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* @file ctype.h
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* @brief ASCII character classification.
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*/
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#include <sys/cdefs.h>
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#include <xlocale.h>
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/** Internal implementation detail. Do not use. */
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#define _CTYPE_U 0x01
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/** Internal implementation detail. Do not use. */
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#define _CTYPE_L 0x02
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/** Internal implementation detail. Do not use. */
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#define _CTYPE_D 0x04
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/** Internal implementation detail. Do not use. */
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#define _CTYPE_S 0x08
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/** Internal implementation detail. Do not use. */
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#define _CTYPE_P 0x10
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/** Internal implementation detail. Do not use. */
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#define _CTYPE_C 0x20
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/** Internal implementation detail. Do not use. */
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#define _CTYPE_X 0x40
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/** Internal implementation detail. Do not use. */
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#define _CTYPE_B 0x80
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/** Internal implementation detail. Do not use. */
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#define _CTYPE_R (_CTYPE_P|_CTYPE_U|_CTYPE_L|_CTYPE_D|_CTYPE_B)
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/** Internal implementation detail. Do not use. */
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#define _CTYPE_A (_CTYPE_L|_CTYPE_U)
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/** Internal implementation detail. Do not use. */
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#define _CTYPE_N _CTYPE_D
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__BEGIN_DECLS
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/** Internal implementation detail. Do not use. */
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extern const char* _ctype_;
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/** Returns true if `ch` is in `[A-Za-z0-9]`. */
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int isalnum(int __ch);
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/** Returns true if `ch` is in `[A-Za-z]`. */
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int isalpha(int __ch);
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/** Returns true if `ch` is a space or tab. */
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int isblank(int __ch);
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/** Returns true if `ch` is a control character (any character before space, plus DEL). */
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int iscntrl(int __ch);
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/** Returns true if `ch` is in `[0-9]`. */
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int isdigit(int __ch);
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/** Returns true if `ch` is `[A-Za-z0-9]` or punctuation. */
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int isgraph(int __ch);
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/** Returns true if `ch` is in `[a-z]`. */
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int islower(int __ch);
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/** Returns true if `ch` is `[A-Za-z0-9]` or punctuation or space. */
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int isprint(int __ch);
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/** Returns true if `ch` is punctuation. */
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int ispunct(int __ch);
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/** Returns true if `ch` is in `[ \f\n\r\t\v]`. */
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int isspace(int __ch);
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/** Returns true if `ch` is in `[A-Z]`. */
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int isupper(int __ch);
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/** Returns true if `ch` is in `[0-9a-f]`. */
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int isxdigit(int __ch);
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/** Returns the corresponding lower-case character if `ch` is upper-case, or `ch` otherwise. */
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int tolower(int __ch);
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/**
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* Returns the corresponding lower-case character if `ch` is upper-case, or undefined otherwise.
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*
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* Available since API level 21.
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*
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* Prefer tolower() instead.
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*/
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int _tolower(int __ch) __INTRODUCED_IN(21);
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/** Returns the corresponding upper-case character if `ch` is lower-case, or `ch` otherwise. */
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int toupper(int __ch);
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/**
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* Returns the corresponding upper-case character if `ch` is lower-case, or undefined otherwise.
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*
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* Available since API level 21.
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*
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* Prefer toupper() instead.
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*/
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int _toupper(int __ch) __INTRODUCED_IN(21);
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#if __ANDROID_API__ >= __ANDROID_API_L__
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/** Like isalnum but with an ignored `locale_t`. */
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int isalnum_l(int __ch, locale_t __l) __INTRODUCED_IN(21);
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/** Like isalpha but with an ignored `locale_t`. */
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int isalpha_l(int __ch, locale_t __l) __INTRODUCED_IN(21);
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/** Like isblank but with an ignored `locale_t`. */
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int isblank_l(int __ch, locale_t __l) __INTRODUCED_IN(21);
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/** Like iscntrl but with an ignored `locale_t`. */
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int iscntrl_l(int __ch, locale_t __l) __INTRODUCED_IN(21);
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/** Like isdigit but with an ignored `locale_t`. */
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int isdigit_l(int __ch, locale_t __l) __INTRODUCED_IN(21);
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/** Like isgraph but with an ignored `locale_t`. */
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int isgraph_l(int __ch, locale_t __l) __INTRODUCED_IN(21);
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/** Like islower but with an ignored `locale_t`. */
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int islower_l(int __ch, locale_t __l) __INTRODUCED_IN(21);
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/** Like isprint but with an ignored `locale_t`. */
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int isprint_l(int __ch, locale_t __l) __INTRODUCED_IN(21);
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/** Like ispunct but with an ignored `locale_t`. */
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int ispunct_l(int __ch, locale_t __l) __INTRODUCED_IN(21);
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/** Like isspace but with an ignored `locale_t`. */
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int isspace_l(int __ch, locale_t __l) __INTRODUCED_IN(21);
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/** Like isupper but with an ignored `locale_t`. */
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int isupper_l(int __ch, locale_t __l) __INTRODUCED_IN(21);
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/** Like isxdigit but with an ignored `locale_t`. */
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int isxdigit_l(int __ch, locale_t __l) __INTRODUCED_IN(21);
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/** Like tolower but with an ignored `locale_t`. */
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int tolower_l(int __ch, locale_t __l) __INTRODUCED_IN(21);
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/** Like toupper but with an ignored `locale_t`. */
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int toupper_l(int __ch, locale_t __l) __INTRODUCED_IN(21);
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#else
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// Implemented as static inlines before 21.
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#endif
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/** Returns true if `ch` is less than 0x80. */
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int isascii(int __ch);
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/** Returns `ch & 0x7f`. */
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int toascii(int __ch);
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__END_DECLS
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